LENOVO IDEACENTRE AIO 3 22ADA05 (01) PDF MANUAL


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PDF Content Summary: User Guide IdeaCentre AIO 3

Read this first Before using this documentation and the product it supports, ensure that you read and understand the following: • Appendix A “Important safety information” on page 49 • Safety and Warranty Guide • Setup Guide First Edition (April 2020) © Copyright Lenovo 2020. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS 35F-05925.

Contents About this documentation . . . . . . . . iii Chapter 1. Meet your computer. . . . . 1 Front . . . . . . . . . . . . . . . . . . . . 1 Rear . . . . . . . . . . . . . . . . . . . . 2 Left . . . . . . . . . . . . . . . . . . . . 3 Right . . . . . . . . . . . . . . . . . . . . 4 Bottom . . . . . . . . . . . . . . . . . . . 5 Features and specifications . . . . . . . . . . . 6 Statement on USB transfer rate . . . . . . . . 6 Chapter 2. Get started with your computer. . . . . . . . . . . . . . . . . 7 Adjust the computer stand . . . . . . . . . . . 7 Get started with Windows 10 . . . . . . . . . . 7 Windows account . . . . . . . . . . . . . 7 Windows user interface . . . . . . . . . . . 8 Connect to networks . . . . . . . . . . . . . . 9 Connect to the wired Ethernet . . . . . . . . 9 Connect to Wi-Fi networks. . . . . . . . . . 9 Use Lenovo Vantage . . . . . . . . . . . . . . 9 Use the multi-touch screen (for selected models) . . . . . . . . . . . . . . . . . . 10 Use multimedia . . . . . . . . . . . . . . . 13 Use audio . . . . . . . . . . . . . . . 13 Use the camera (for selected models) . . . . 13 Connect to an external display . . . . . . . 13 Chapter 3. Explore your computer . . 15 Manage power . . . . . . . . . . . . . . . 15 Set power button behaviors . . . . . . . . 15 Set the power plan . . . . . . . . . . . . 15 Transfer data . . . . . . . . . . . . . . . . 15 Connect to a Bluetooth-enabled device. . . . 15 Use the optical drive (for selected models) . . 16 Use a media card . . . . . . . . . . . . 16 Use the color sensor (for selected models) . . . . 17 Purchase accessories . . . . . . . . . . . . 17 Use Extreme Boot . . . . . . . . . . . . . . 17 Set up Extreme Boot . . . . . . . . . . . 17 Disable Extreme Boot. . . . . . . . . . . 18 Chapter 4. Troubleshooting, diagnostics, and recovery . . . . . . . 21 Basic procedure for resolving computer problems . . . . . . . . . . . . . . . . . 21 Troubleshooting . . . . . . . . . . . . . . 21 Startup problems . . . . . . . . . . . . 22 Screen problems . . . . . . . . . . . . 23 Audio problems . . . . . . . . . . . . . 24 Network problems . . . . . . . . . . . . 25 Performance problems . . . . . . . . . . 27 Storage drive problems . . . . . . . . . . 28 CD or DVD problems . . . . . . . . . . . 28 Serial connector problems . . . . . . . . . 29 Software problems. . . . . . . . . . . . 29 Recovery . . . . . . . . . . . . . . . . . 29 Restore system files and settings to an earlier point . . . . . . . . . . . . . . . . . 30 Restore your files from a backup . . . . . . 30 Reset your computer . . . . . . . . . . . 30 Use advanced options . . . . . . . . . . 30 Windows automatic recovery. . . . . . . . 30 Create and use a recovery USB device . . . . 30 Update the device driver . . . . . . . . . 31 Chapter 5. CRU replacement . . . . . 33 What are CRUs . . . . . . . . . . . . . . . 33 Replace a CRU . . . . . . . . . . . . . . . 33 Power cord and power adapter . . . . . . . 34 Computer stand . . . . . . . . . . . . . 36 Computer cover . . . . . . . . . . . . . 38 Storage drive . . . . . . . . . . . . . . 41 Chapter 6. Help and support . . . . . 45 Self-help resources . . . . . . . . . . . . . 45 Call Lenovo . . . . . . . . . . . . . . . . 46 Before you contact Lenovo . . . . . . . . 46 Lenovo Customer Support Center . . . . . . 46 Purchase additional services. . . . . . . . . . 47 Appendix A. Important safety information. . . . . . . . . . . . . . . 49 Appendix B. Accessibility and ergonomic information . . . . . . . . 63 Appendix C. Compliance information. . . . . . . . . . . . . . . 67 Appendix D. Notices and trademarks. . . . . . . . . . . . . . . 79

© Copyright Lenovo 2020 i ii User Guide About this documentation • Illustrations in this documentation might look different from your product. • Depending on the model, some optional accessories, features, and software programs might not be available on your computer. • Depending on the version of operating systems and programs, some user interface instructions might not be applicable to your computer. • Documentation content is subject to change without notice. Lenovo makes constant improvements on the documentation of your computer, including this User Guide. To get the latest documentation, go to: support.lenovo.com • Microsoft® makes periodic feature changes to the Windows® operating system through Windows Update. As a result, some information in this documentation might become outdated. Refer to Microsoft resources for the latest information. • This documentation applies to the following product models: Model name Machine Types (MT) IdeaCentre AIO 3 22ADA05 F0EX IdeaCentre AIO 3 22IMB05 F0EV IdeaCentre AIO 3 24ARE05 F0EW IdeaCentre AIO 3 24IMB05 F0EU IdeaCentre AIO 3 27IMB05 F0EY © Copyright Lenovo 2020 iii iv User Guide Chapter 1. Meet your computer Front 1. Air vents Be careful not to block any air vents on the computer. Blocked air vents can cause overheating. Move the slider to cover or uncover the camera lens. 2. Camera cover slider Note: The camera cover helps you better protect your privacy. 3. Camera light If the light is on, the camera is in use. Take pictures or record videos by clicking Camera from the Start menu.

4. Integrated camera If you use other apps that support photographing, video chatting, and video conference, the camera starts automatically when you enable the camera required feature from the app.

5. Integrated microphone Capture or record sound and voice. 6. Screen Displays text, graphics, and videos. Selected models support multi-touch function. See “Use the multi-touch screen (for selected models)” on page 10. 7. Cable clip* Lock cables of external devices to your computer through a cable clip to keep your desktop organized. * for selected models © Copyright Lenovo 2020 1 Rear 1. Power connector Connect the power adapter to your computer for power supply. 2. Ethernet connector Connect to a local area network (LAN). When the indicator is on, the computer is connected to a LAN. When the indicator blinks, data is being transmitted. Send audio and video signals from the computer to another audio or video device,

3. HDMI™ 1.4 out connector such as a high-performance monitor. For more information, see hdmi.org/manufacturer/hdmi_1_4/index.aspx.

4. USB 2.0 connectors (2) Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer. Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB

5. USB 3.1 connector* * for selected models 2 User Guide storage device, or USB printer. Support Extreme Boot when a keyboard is connected.

Left 1. USB 3.1 connector 2. 3 in 1 SD card slot 3. Combo audio jack Connect USB-compatible devices, such as a USB keyboard, USB mouse, USB storage device, or USB printer. USB 3.1 connector Gen 1: IdeaCentre AIO 3 22ADA05/IdeaCentre AIO 3 22IMB05/IdeaCentre AIO 3 24IMB05/IdeaCentre AIO 3 27IMB05 USB 3.1 connector Gen 2: IdeaCentre AIO 3 24ARE05 Supported cards: 1. Secure Digital (SD) card 2. Secure Digital eXtended-Capacity (SDXC) USH-1 card 3. Secure Digital High-Capacity (SDHC) USH-1 card Note: Your computer does not support the content protection for recordable media (CPRM) feature for the SD card. See “Use a media card” on page 16. Connect headphones or headsets with a 3.5-mm (0.14-inch), 4-pole plug. Note: This jack does not support standalone external microphones. If you use headsets, choose one with a single plug. Chapter 1. Meet your computer 3

Right 1. Optical drive eject /close

button* Eject or close the optical drive tray. 2. Optical drive activity indicator* This indicator is on when the optical drive is in use. 3. Optical drive* Read data from or write data to an optical drive. Press to turn on the computer. To turn off the computer, open the Start menu, click Power, and then select Shut down.

4. Power button * for selected models 4 User Guide The indicator in the power button shows the system status of your computer. 1. On: The computer is on. 2. Off: The computer is off or in hibernation mode. 3. Blinking: The computer is in sleep mode.

Bottom 1. Internal speakers (2) Enable you to experience high-quality sound. 2. Storage drive door* Enable you to insert or remove the storage drive. You can use the latch to lock or unlock the storage drive door. * for selected models Chapter 1. Meet your computer 5 Features and specifications 1. Right-click the Start button to open the Start context menu.

Hardware configuration AC power adapter 2. Click Device Manager. Type the administrator password or provide confirmation if prompted. • IdeaCentre AIO 3 22IMB05, IdeaCentre AIO 3 24IMB05, IdeaCentre AIO 3 27IMB05, and IdeaCentre AIO 3 22ADA05 models – 90 W – 120 W • IdeaCentre AIO 3 24ARE05 model – 120 W

Adaptability for power supply • Mainland China: 220 V±22 V, 50 Hz±1 Hz • Adaptive voltage positioning: 90 V to 264 V, 50/60 Hz Microprocessor To view the microprocessor information of your computer, right-click the Start button and then click System. Memory Double data rate 4 (DDR4) small outline dual in-line memory module (SODIMM) To view the storage drive capacity of your computer, right-click the Start button to open the Start context menu and then click Disk Management. Storage device Note: The storage drive capacity indicated by the system is less than the nominal capacity. • 3 in 1 card reader*

Expansion Network features * for selected models • Memory slots • M.2 solid-state drive slot • Optical drive* • Bluetooth* • Ethernet LAN • Wireless LAN*

Statement on USB transfer rate Depending on many factors such as the processing capability of the host and peripheral devices, file attributes, and other factors related to system configuration and operating environments, the actual transfer rate using the various USB connectors on this device will vary and will be slower than the data rate listed below for each corresponding device. USB device Data rate (Gbit/s) 3.1 Gen 1/3.2 Gen 1 5 3.1 Gen 2/3.2 Gen 2 10 3.2 Gen 2 × 2 20 6 User Guide Chapter 2. Get started with your computer Adjust the computer stand Note: For information about installing the computer stand, refer to the setup guide that comes with your computer. Tilt the screen forward and back. Get started with Windows 10 Learn the basics of Windows 10 and start working with it right away. For more information about Windows 10, see the Windows help information. Windows account A user account is required to use the Windows operating system. It can either be a Windows user account or a Microsoft account. Windows user account When you start Windows for the first time, you are prompted to create a Windows user account. This first account you created is of the “Administrator” type. With an Administrator account, you can create additional user accounts or change account types by doing the following: 1. Open the Start menu and select Settings ➙ Accounts ➙ Family & other users. 2. Follow the on-screen instructions. © Copyright Lenovo 2020 7 Microsoft account You can also log in to the Windows operating system with a Microsoft account. To create a Microsoft account, go to the Microsoft sign-up page at signup.live.com and follow the on screen instructions. With a Microsoft account, you can: • Enjoy one-time signing in if you are using other Microsoft services, such as OneDrive, Skype, and Outlook. com. • Sync personalized settings across other Windows-based devices. Windows user interface 1. Account Change account settings, lock the computer, or sign out from the current account. 2. Documents Open the Documents folder, a default folder to save your received files. 3. Pictures Open the Pictures folder, a default folder to save your received pictures. 4. Settings Launch Settings. 5. Power Shut down, restart, or put the computer into sleep mode. 6. Start button Open the Start menu. 7. Windows Search Type what you are looking for in the search box and get search results from your computer and the Web. 8. Task View Display all opened apps and switch among them. 9. Windows notification area Display notifications and status of some features. 10. Battery status icon Display power status and change battery or power settings. When your computer is not connected to ac power, the icon changes to . 8 User Guide 11. Network iconConnect to an available wireless network and display the network status. When connected to a wired network, the icon changes to . 12. Action center Display the latest notifications from apps and provide quick access to some features. Open the Start menu • Click the Start button. • Press the Windows logo key on the keyboard. Open the Start context menu Right-click the Start button. Access Control Panel • Open the Start menu and click Windows System ➙ Control Panel. • Use Windows Search. Launch an app • Open the Start menu and select the app you want to launch. • Use Windows Search. Connect to networks Your computer helps you connect to the world through a wired or wireless network. Connect to the wired Ethernet Connect your computer to a local network through the Ethernet connector on your computer with an Ethernet cable. Connect to Wi-Fi networks 1. Click the network icon in the Windows notification area. A list of available wireless networks is displayed. 2. Select a network available for connection. Provide required information, if needed. Use Lenovo Vantage The preinstalled Lenovo Vantage is a customized one-stop solution to help you maintain your computer with automated updates and fixes, configure hardware settings, and get personalized support. Access Lenovo Vantage Open the Start menu and click Lenovo Vantage. You also can type Lenovo Vantage in the search box. To download the latest version of Lenovo Vantage, go to Microsoft Store and search by the app name. Chapter 2. Get started with your computer 9 Key features Lenovo Vantage enables you to: • Know the device status easily and customize device settings. • Download and install UEFI BIOS, firmware and driver updates to keep your computer up-to-date. • Monitor your computer health, and secure your computer against outside threats. • Look up warranty status (online). • Access User Guide and helpful articles. Notes: • The available features vary depending on the computer model. • Lenovo Vantage makes periodic updates of the features to keep improving your experience with your computer. The description of features might be different from that on your actual user interface. Use the multi-touch screen (for selected models) If your computer display supports the multi-touch function, you can navigate the screen with simple touch gestures. Note: Some gestures might not be available depending on the app you use. Tap once • From the Start menu: Open an app or item. • From the desktop: Select an app or item. • In an open app: Perform an action such as Copy, Save, and Delete, depending on the app. Tap twice quickly Open an app or item from the desktop. 10 User Guide

Tap and hold Open a shortcut menu. Slide Scroll through items, such as lists, pages, and photos. Drag an item to the location you want Move an object. Move two fingers closer together Zoom out. Chapter 2. Get started with your computer 11

Move two fingers farther apart Zoom in. Swipe in from the right edge Open the action center to see your notifications and quick actions. Swipe in from the left edge View all your open windows in task view. • Swipe downwards shortly from the top edge (for full-screened app or when your computer is in the tablet mode) Show a hidden title bar. • Swipe in from the top edge to the bottom edge (when your computer is in the tablet mode) Close the current app. 12 User Guide Tips • Turn off the computer before cleaning the multi-touch screen. • Use a dry, soft, and lint-free cloth or a piece of absorbent cotton to remove fingerprints or dust from the multi-touch screen. Do not apply solvents to the cloth. • The multi-touch screen is a glass panel covered with a plastic film. Do not apply pressure or place any metallic object on the screen, which might damage the touch panel or cause it to malfunction. • Do not use fingernails, gloved fingers, or inanimate objects for input on the screen. • Regularly calibrate the accuracy of the finger input to avoid a discrepancy. Use multimedia Use your computer for business or entertainment with the devices (such as a camera, a monitor, or speakers). Use audio To enhance the audio experience, connect speakers, headphones, or a headset to the audio connector. Adjust the volume 1. Click the volume icon in the Windows notification area on the taskbar. 2. Follow the on-screen instructions to adjust the volume. Click the speaker icon to mute the audio. Change the sound settings 1. Go to Control Panel and view by category. 2. Click Hardware and Sound ➙ Sound. 3. Change the settings as you prefer. Use the camera (for selected models) You can use the camera to take photos or record videos. To take photos or record a video: 1. Open the Start menu and click Camera. You also can type Camera in the search box. 2. To take a photo, click the camera icon. If you want to record video, click the video icon to switch to video mode. If you use other programs that provide features such as photographing, video capturing, and video conference, the camera starts automatically when you enable the camera-required feature. Connect to an external display Connect your computer to a projector or a monitor to give presentations or expand your workspace. Connect to a wired display 1. Connect the external display to an appropriate video connector on your computer, such as the VGA-out connector, DisplayPort-out connector, or HDMI-out connector. 2. Connect the external display to an electrical outlet. 3. Turn on the external display. Chapter 2. Get started with your computer 13 If your computer cannot detect the external display, right-click an empty area of the desktop, and then click Display settings ➙ Detect. Connect to a wireless display To use a wireless display, ensure that both your computer and the external display support the Miracast® feature. • Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices ➙ Add Bluetooth or other device. In the Add a device window, click Wireless display or dock. Then, follow the instructions on the screen. • Click the action center icon in the Windows notification area and click Connect. Select the wireless display and follow the on-screen instructions. Set the display mode Right-click a blank area on the desktop and select Display settings. Then, select a display mode of your preference from the Multiple displays menu. • Duplicate these displays: Display the same video output on both your computer screen and an external display. • Extend these displays: Extend the video output from your computer display to an external display. You can drag and move items between the two displays. • Show only on 1: Display the video output only on your computer screen. • Show only on 2: Display the video output only on an external display. If you show programs using DirectDraw or Direct3D® in full-screen mode, only the main display shows the video output. Change display settings 1. Right-click a blank area on the desktop and select Display settings. 2. Select the display that you want to configure. 3. Change display settings of your preference. You can change the settings for both the computer display and the external display. For example, you can define which one is the main display and which one is the secondary display. You also can change the resolution and orientation. Note: If you set a higher resolution for the computer display than the external display, only part of the screen can be displayed on the external display. 14 User Guide Chapter 3. Explore your computer Manage power Use the information in this section to achieve the best balance between performance and power efficiency. Set power button behaviors You can define what the power button does according to your preference. For example, by pressing the power button, you can turn off the computer or put the computer to sleep or hibernation mode. To change what the power button does: 1. Go to Control Panel and view by large icons or small icons. 2. Click Power Options ➙ Choose what the power buttons do. 3. Change the settings as you prefer. Set the power plan For ENERGY STAR® compliant computers, the following power plan takes effect when your computers have been idle for a specified duration: Table 1. Default power plan (when plugged into ac power) • Turn off the display: After 10 minutes • Put the computer to sleep: After 25 minutes To awaken the computer from Sleep mode, press any key on your keyboard. To reset the power plan to achieve the best balance between performance and power saving: 1. Go to Control Panel and view by large icons or small icons. 2. Click Power Options, and then choose or customize a power plan of your preference. Transfer data Quickly share your files using the built-in Bluetooth technology among devices with the same features. You also can install a disc or media card to transfer data. Connect to a Bluetooth-enabled device You can connect all types of Bluetooth-enabled devices to your computer, such as a keyboard, a mouse, a smartphone, or speakers. To ensure that the connection is successful, place the devices 10 meters (33 feet), at most, from the computer. 1. Turn on Bluetooth on the computer. a. Open the Start menu, and then click Settings ➙ Devices ➙ Bluetooth & other devices. b. Turn on the Bluetooth switch. 2. Click Add Bluetooth or other device ➙ Bluetooth. 3. Select a Bluetooth device, and then follow the on-screen instructions. © Copyright Lenovo 2020 15 Your Bluetooth device and computer will automatically connect the next time if the two devices are in range of each other with Bluetooth turned on. You can use Bluetooth for data transfer or remote control and communication. Use the optical drive (for selected models) If your computer has an optical drive, read the following information. Know the type of your optical drive 1. Right-click the Start button to open the Start context menu. 2. Click Device Manager. Type the administrator password or provide confirmation, if prompted. Install or remove a disc 1. With the computer on, press the eject/close button on the optical drive. The tray slides out of the drive. 2. Insert a disc into the tray or remove a disc from the tray, and then press the eject/close button again to close the tray. Note: If the tray does not slide out of the drive when you press the eject/close button, turn off the computer. Then, insert a straightened paper clip into the emergency-eject hole adjacent to the eject/close button. Use the emergency eject only in an emergency. Record a disc 1. Insert a recordable disc into the optical drive that supports recording. 2. Do one of the following: • Open the Start menu, and then click Settings ➙ Devices ➙ AutoPlay. Select or turn on Use AutoPlay for all media and devices. • Open Windows Media Player. • Double-click the ISO file. 3. Follow the on-screen instructions. Use a media card If your computer has a SD-card slot, read the following information. Install a media card 1. Locate the SD-card slot. 2. Ensure that the metal contacts on the card are facing the ones in the SD-card slot. Insert the card firmly into the SD-card slot until it is secured in place. Remove a media card Attention: Before removing a media card, eject the card from the Windows operating system first. Otherwise, data on the card might get corrupted or lost. 1. Click the triangular icon in the Windows notification area to show hidden icons. Then, right-click the Safely Remove Hardware and Eject Media icon. 2. Select the corresponding item to eject the card from the Windows operating system. 3. Press the card and remove it from your computer. Store the card safely for future use. 16 User Guide Use the color sensor (for selected models) The color sensor enables you to measure and adjust the color accuracy of your computer display. Therefore, a color image or graphic is rendered as close as possible to its original intent. The color profile for your computer display is preinstalled on your computer. If you want to install a different color profile, go to: support.lenovo.com To use the color sensor, open the Start menu, click X-Rite ➙ PANTONE Color Calibrator, and then follow the on-screen instructions. When the color sensor is in use, the color-sensor indicator on the computer outer lid blinks twice at regular intervals. When the color measuring and adjustment finishes, the color-sensor indicator stays on. After you use the color sensor for the first time, a calibration profile ECCM2SensorData.dat is generated. Back up this calibration profile on an external storage device in case that both the color sensor and the internal storage device are replaced. To locate the DAT file, go to This PC ➙ Documents ➙ X-Rite. The display provides a color profile that can work with the Microsoft Image Color Management (ICM) function. If the graphics software you are using is compatible with ICM, you can display a color image on your monitor and match it with the same quality one on another device, such as a scanner or a printer. For more information about the Microsoft ICM, see the Windows help information. Purchase accessories Lenovo has a number of hardware accessories and upgrades to help expand the capabilities of your computer. Options include memory modules, storage devices, network cards, power adapters, keyboards, mice, and more. To shop at Lenovo, go to lenovo.com/accessories. Use Extreme Boot Your computer can be turned on by pressing the space key on the keyboard. This feature is available by default whether you use a wired keyboard or a wireless keyboard connected to a USB dongle. Set up Extreme Boot 1. Connect the computer to the ac power. 2. Connect the keyboard to the USB connector at the right end. 3. Press the space key on the keyboard. Chapter 3. Explore your computer 17

Notes: If Extreme Boot fails, check the following: • If the keyboard is connected to the correct USB connector. • If the USB connector or dongle of the keyboard is plugged in. • If Extreme Boot is enabled in BIOS. • If you have set BIOS with passwords, Extreme Boot cannot be used. Disable Extreme Boot Use either of the following methods to disable Extreme Boot: • Connect the keyboard to a different USB connector. • Disable Extreme Boot in BIOS: 1. Restart or turn on the computer, and then press F1 repeatedly to enter BIOS when the logo screen is displayed. Alternatively, you can press and hold F1 while starting the computer to enter BIOS. 2. Select Start menu ➙ Power ➙ Extreme Boot ➙ Disabled. Note: If you want to enable Extreme Boot again, select Enabled in the same menu. 18 User Guide Notes: If you use Extreme Boot, the following situations may occur: • The Lenovo or Energy Star logo does not appear when the computer starts. • USB devices such as keyboards, mice or external storage are not initially available on startup. • The system cannot be started through a USB device or network boot. • Firmware-based trusted platform module (TPM) applications will have limited functionality. Chapter 3. Explore your computer 19

20 User Guide

Chapter 4. Troubleshooting, diagnostics, and recovery This chapter provides solutions to resolve computer problems. Use the basic procedure as a starting point for resolving computer problems. Basic procedure for resolving computer problems Prerequisite Before you start, read Appendix A “Important safety information” on page 49 and print the following instructions. 1. Check that: a. The cables for all connected devices are connected correctly and securely. b. All components have been reassembled correctly. c. All connected devices that require ac power are connected to properly grounded and working electrical outlets. d. All connected devices are enabled in UEFI BIOS. 2. Use an antivirus program to see if the computer has been infected by a virus. If the program detects a virus, remove the virus. 3. Go to “Troubleshooting” on page 21 and follow the instructions for the type of problem you are experiencing. 4. Recover your operating system. See “Recovery” on page 29. 5. If the problem persists, contact Lenovo. See Chapter 6 “Help and support” on page 45. Troubleshooting Use the troubleshooting information to find solutions to problems that have definite symptoms. © Copyright Lenovo 2020 21

Startup problems Problem Solution • Ensure that the power cord is correctly connected to the rear of the computer and to a working electrical outlet.

The computer does not start up when you press the power button. The operating system does not start up from the correct storage drive or fails to start up The computer beeps multiple times before • If the computer has a secondary power switch on the rear of the computer, ensure that it is switched on. • The power indicator on the front of the computer is on. • The computer voltage matches the voltage available at the electrical outlet for your country or region. • Ensure that all storage drive signal cables and power cables are connected correctly. • Ensure that the storage drive the computer starts up from is listed as the first startup device in UEFI BIOS. • In rare cases, the storage drive with the operating system might get corrupted or damaged. In such cases, you might need to replace the storage drive. • If the computer is installed with an Optane memory: – Ensure that the Optane memory is not removed. – Ensure that the Optane memory is not damaged. Check the Optane memory using diagnostic tools.

the operating system starts up.Ensure that no keys are stuck. 22 User Guide

Screen problems Problem Solution • The computer voltage matches the voltage available at the electrical outlet for your country or region. • Press a key to exit the screen saver.

The screen goes blank while the computer is on. The image appears to be flickering. The image is discolored. • Press the power button to wake the computer from sleep or hibernation mode. • The brightness and contrast is set correctly. • If the screen goes blank when some programs start, install the device drivers for the programs. Refer to the documentation for the affected program to check whether any device drivers are required. • The screen might be affected by interference from nearby equipment. Magnetic fields around other devices, such as transformers, appliances, fluorescent lights, and other monitors, might be causing the problem. Move fluorescent desk lighting or any equipment that produces magnetic fields farther away from the screen. If the problem persists, turn off the computer. Then, adjust the placement of the computer and other devices so that they are at least 305 mm (12 inches) apart. Turn on the computer. • Reset the refresh rate. 1. Right-click a blank area on the desktop. 2. Click Display settings. On the Display tab, click Advanced display settings ➙ Display adapter properties for Display 1. 3. Click the Monitor tab, and then reset the refresh rate to be the highest and noninterlaced. • The screen might be affected by interference from nearby equipment. Move fluorescent desk lighting or any equipment that produces magnetic fields farther away from the screen. • Turn off the computer. Then, adjust the placement of the computer and other devices so that they are at least 305 mm (12 inches) apart. Turn on the computer. Chapter 4. Troubleshooting, diagnostics, and recovery 23

Audio problems Problem Solution • If you are using powered external speakers that have an On/Off control, ensure that: – The On/Off control is set to the On position. – The speaker power cable is connected to a properly grounded, functional ac electrical outlet. • If your external speakers have a volume control, ensure that the volume is not set too low. • Click the volume icon in the Windows notification area on the taskbar. Check the speaker and volume settings. Do not mute the speaker or set the volume at a very low level. • If your computer has a front audio panel, ensure that the volume is not set too low.

The audio cannot be heard on the Windows operating system. The sound does not come from the headset or headphones. The sound comes from one of the external speakers. 24 User Guide • Ensure that your external speakers (and headphones, if used) are connected to the correct audio connector on the computer. Most speaker cables are color-coded to match the audio connector. Note: When external-speaker or headphone cables are connected to the audio connector, the internal speaker, if present, is disabled. In most cases, if an audio adapter is installed in one of the expansion slots, the audio function built into the system board is disabled. Therefore, you must use the audio connectors on the audio adapter. • Ensure that the program you are running is designed for use in the Microsoft Windows operating system. If the program is designed to run in DOS, the program does not use the Windows sound feature. The program must be configured to use SoundBlaster Pro or SoundBlaster emulation. • Ensure that the audio device drivers are correctly installed. 1. Exit the application that uses the sound device (for example, Windows Media Player). 2. Right-click the volume icon in the Windows notification area on the taskbar. 3. Click Playback devices. 4. Select the headset or headphones, and then click Set Default. 5. Click OK. • Ensure that the speaker cable is inserted completely into the connector on the computer. • Ensure that the cable that connects the left speaker to the right speaker is securely connected. • Ensure that the balance settings are set correctly. 1. Right-click the volume icon in the Windows notification area on the taskbar. Then, click Open Volume Mixer and select the desired speaker. 2. Click the speaker icon on top of the volume control, and then click the Levels tab.

Network problems Note: The Wi-Fi and Bluetooth features are optional. Problem Solution • Connect the cable from the Ethernet connector to the RJ45 connector of the hub. • Enable the Ethernet LAN feature in UEFI BIOS. • Enable the Ethernet LAN adapter. 1. Go to Control Panel and view by large icons or small icons. 2. Click Network and Sharing Center ➙ Change adapter settings.

The computer cannot connect to an Ethernet LAN. When a Gigabit Ethernet model computer is used at a speed of 1000 Mbps, the Ethernet LAN connection fails or errors occur. The Wake On LAN (WOL) feature does not 3. Right-click the Ethernet LAN adapter icon and click Enable. • Update or reinstall the Ethernet LAN driver. • Install all networking software that is necessary for your network environment. Check with your LAN administrator for the necessary networking software. • Set the same duplex for the switch port and the adapter. If you configured the adapter for full duplex, ensure that the switch port is also configured for full duplex. Setting a wrong duplex mode might degrade performance, cause data loss, or result in lost connections. Connect the network cable to the Ethernet connector using Category 5 wiring and a 100 BASE-T hub/switch (not 100 BASE-X).

work. Enable the Wake On LAN feature in UEFI BIOS. • Enable the Wi-Fi feature in UEFI BIOS. • Enable all Wi-Fi devices. 1. Right-click the Start button to open the Start context menu. 2. Click Device Manager. Type the administrator password or provide confirmation, if prompted.

The Wi-Fi feature does not work. 3. Expand Network adapters to display all network devices. 4. Right-click each Wi-Fi device, and then click Enable device. • Enable the Wi-Fi feature in Windows Settings. 1. Open the Start menu. 2. Click Settings ➙ Network & Internet ➙ Wi-Fi. 3. Enable the Wi-Fi feature. • Update or reinstall the Wi-Fi driver. Chapter 4. Troubleshooting, diagnostics, and recovery 25

Problem Solution • Enable the Bluetooth feature in UEFI BIOS. • Enable all Bluetooth devices. 1. Right-click the Start button to open the Start context menu. 2. Click Device Manager. Type the administrator password or provide confirmation if prompted. 3. Expand Bluetooth to display all Bluetooth devices. Right-click each Bluetooth device, and then click Enable device.

The Bluetooth feature does not work. Sound does not come from the Bluetooth headset or headphones. 26 User Guide 4. Expand Network adapters to display all network devices. Right-click each Bluetooth device, and then click Enable device. • Turn on the Bluetooth radio. 1. Open the Start menu. 2. Click Settings ➙ Devices ➙ Bluetooth & other devices. 3. Turn on the Bluetooth switch to enable the Bluetooth feature. • Update or reinstall the Bluetooth driver. 1. Exit the application that uses the sound device (for example, Windows Media Player). 2. Right-click the volume icon in the Windows notification area on the taskbar. 3. Click Playback devices. 4. If you are using the headset profile, select Bluetooth Hands-free Audio, and then click Set Default. If you are using the AV profile, select Stereo Audio, and then click Set Default. 5. Click OK.

Performance problems Problem Solution Note: Depending on the volume of the storage drives and amount of data stored on the storage drives, the disk-defragmentation process might take up to several hours. 1. Close any open programs and windows. 2. Open the Start menu.

Excessive fragmented files exist on the storage drives. The free storage drive space is insufficient. The free memory space is insufficient. 3. Click Windows System ➙ File Explorer ➙ This PC. 4. Right-click your C drive and then click Properties. 5. Click the Tools tab. 6. Click Optimize. Select the drive as desired, and then click Optimize. 7. Follow the on-screen instructions. • Clean out your Inbox, Sent Items, and Deleted Items folders from your e-mail application. • Clean up your C drive. 1. Open the Start menu. 2. Click Windows System ➙ File Explorer ➙ This PC. 3. Right-click your C drive and then click Properties. 4. Check the amount of free space, and then click Disk Cleanup. 5. A list of unnecessary file categories is displayed. Select the category you want to delete, and then click OK. • Disable some Windows features or remove some unnecessary programs. 1. Go to Control Panel and view by large icons or small icons. 2. Click Programs and Features. 3. Do one of the following: – To disable some Windows features, click Turn Windows features on or off. Follow the on-screen instructions. – To remove some unnecessary programs, select the program you want to remove, and then click Uninstall/ Change or Uninstall. • Right-click a blank area on the taskbar and open Task Manager. Then, end some tasks you are not performing. • Install additional memory modules. Chapter 4. Troubleshooting, diagnostics, and recovery 27

Storage drive problems Problem Solution • Ensure that the signal cables and power cables for all the storage drives are connected correctly. • Ensure that the computer is configured correctly to support the storage drives.

Some or all storage drives are missing from the BIOS menu. CD or DVD problems – If the computer is installed with SATA storage drives, ensure that the SATA storage drive enablement module (one to five storage drives) is installed. – If the computer is installed with SAS storage drives, ensure that the SAS storage drive enablement module (one to five storage drives) or the LSI MegaRAID SAS adapter is installed.

Problem Solution • Ensure that the optical drive supports the CD or DVD. • Ensure that the disc is inserted correctly, with its label up. • Ensure that the disc you are using is clean. To remove dust or fingerprints, wipe the disc clean with a soft cloth from the center to the outside. Wiping a disc in a circular motion might cause loss of data.

A CD or DVD does not work. A bootable recovery medium, such as the Product Recovery CD, cannot be used to start your computer. A black screen is displayed instead of the DVD video. A DVD movie does not play. No audio or only an intermittent audio comes out while a DVD movie is playing. 28 User Guide • Ensure that the power cable and signal cable are securely connected to the drive. • Ensure that the disc you are using is not scratched or damaged. Try inserting another disc that you know works. • If you have multiple CD or DVD drives installed (or a combination of CD and DVD drives), try inserting the disc into the other drive. In some cases, only one of the drives is connected to the audio subsystem. Ensure that the CD or DVD drive is set as the top priority of the boot priority order in UEFI BIOS. Note: On some computer models, the startup sequence is permanently set and cannot be changed. • Restart the DVD player program. • Try a lower screen resolution or color depth. • Close any open files, and then restart the computer. • Ensure that the disc surface is clean and not scratched. • Check the disc or package for regional coding. You might need to purchase a disc with coding for the region where you are using the computer. • Check the volume control settings on the computer and on your speakers. • Ensure that the disc surface is clean and not scratched. • Check all cable connections to and from the speakers. • Use the DVD menu for the video to select a different audio track.

Problem Solution • Disable any background programs, such as AntiVirus or Desktop

The playback is slow or choppy. A message indicating invalid disc or no disc found is displayed. Serial connector problems Themes. • Ensure that video resolution is less than 1152 x 864 pixels. • Ensure that the disc is in the drive with the shiny side of the disc facing down. • Ensure that video resolution is less than 1152 x 864 pixels. • Ensure that the DVD or CD is inserted into an appropriate optical drive. For example, do not insert a DVD into a CD-only drive.

Problem Solution • Connect the serial cable from the serial connector on the computer to the serial device. If the serial device has its own power cord, connect the power cord to a grounded electrical outlet. • Turn on the serial device and keep the device online.

The serial connector cannot be accessed. Software problems • Install any programs supplied with the serial device. Refer to the documentation that comes with the serial device for more information. • If you added one serial-connector adapter, ensure that the adapter is installed correctly.

Problem Solution 1. Check whether the problem is caused by a program. a. Ensure that the software is compatible with the computer. Refer to the information supplied with the software for more information. b. Verify that other software works correctly on the computer. c. Verify that the software you are using works on another

Some programs do not work as expected. Recovery computer. 2. If the problem is caused by a program: • Refer to the printed documentation that comes with the program or the help system of the program. • Update the program. • Uninstall the program and then reinstall it. To download a program that is preinstalled on your computer, go to support.lenovo.com and follow the on-screen instructions.

This section introduces the recovery information of the Windows 10 operating system. Ensure that you read and follow the on-screen recovery instructions. The data on your computer might be deleted during the recovery process. To avoid data loss, make a backup copy of all the data that you want to keep. Chapter 4. Troubleshooting, diagnostics, and recovery 29 Restore system files and settings to an earlier point 1. Go to Control Panel and view by large icons or small icons. 2. Click Recovery ➙ Open System Restore. Then, follow the on-screen instructions. Restore your files from a backup Note: If you use the File History tool to restore your files from a backup, ensure that you backed up your data earlier with the tool. 1. Go to Control Panel and view by large icons or small icons. 2. Click File History ➙ Restore personal files. Then, follow the on-screen instructions. Reset your computer In the resetting process, you can choose to keep your files or remove them when you reinstall the operating system. Note: The items in the graphical user interface (GUI) might change without notice. 1. Open the Start menu, and then click Settings ➙ Update & Security ➙ Recovery. 2. In the Reset this PC section, click Get started. 3. Follow the on-screen instructions to reset your computer. Use advanced options 1. Open the Start menu, and then click Settings ➙ Update & security ➙ Recovery. 2. In the Advanced startup section, click Restart now ➙ Troubleshoot ➙ Advanced options. 3. Select a preferred option from the following list, and then follow the on-screen instructions. • Restore the Windows operating system from a restore point recorded on your computer. • Restore the Windows operating system from a specific system image. • Fix problems that prevent the Windows operating system from loading. • Use the Command Prompt for advanced troubleshooting. • Change the UEFI firmware settings on your computer. • Change the startup settings of the Windows operating system. • Go back to the previous build. Windows automatic recovery Note: Ensure that your computer is connected to ac power during the recovery process. The Windows recovery environment on your computer operates independently from the Windows 10 operating system. It enables you to recover or repair the operating system even if the Windows 10 operating system fails to start. After two consecutive failed boot attempts, the Windows recovery environment starts automatically. Then, you can choose repair and recovery options by following the on-screen instructions. Create and use a recovery USB device It is recommended that you create a recovery USB drive as early as possible as a backup for the Windows recovery programs. With the recovery USB drive, you can troubleshoot and fix the problems even if the preinstalled Windows recovery programs are damaged. 30 User Guide Create a recovery USB drive Attention: The creation process deletes anything stored on the USB drive. To avoid data loss, make a backup copy of all the data that you want to keep. 1. Ensure that your computer is connected to ac power. 2. Prepare a USB drive with at least 16 GB of storage capacity. The actual USB capacity required depends on the size of the recovery image. 3. Connect the prepared USB drive to the computer. 4. Type recovery in the search box. Then, click Create a recovery drive. 5. Click Yes in the User Account Control window to allow the Recovery Media Creator program to start. 6. In the Recovery Drive window, follow the on-screen instructions to create a recovery USB drive. Use the recovery USB drive If you cannot start your computer, go to Chapter 6 “Help and support” on page 45 first to try to solve the problem by yourself. If you still cannot start your computer, use the recovery USB drive to recover your computer. 1. Ensure that your computer is connected to ac power. 2. Connect the recovery USB drive to the computer. 3. Turn on or restart the computer. When the logo screen is displayed, press F12. The Boot Menu window opens. 4. Select the recovery USB drive as the boot device. 5. Click Troubleshoot to display optional recovery solutions. 6. Select a recovery solution as desired. Then, follow the on-screen instructions to complete the process. Update the device driver Attention: Reinstalling device drivers will change the current configuration of the computer. You should download the latest driver for a component when you notice poor performance from that component or when you added a component. This action might eliminate the driver as the potential cause of a problem. Download and install the latest driver by one of the following methods: • From Lenovo Vantage: Open Lenovo Vantage to check the available update packages. If the latest UEFI BIOS update package is available, follow the on-screen instructions to download and install the package. • From the Lenovo Support Web site: Go to support.lenovo.com and select the entry for your computer. Then, follow the on-screen instructions to download and install necessary drivers and software. • From Windows Update: Note: The device drivers provided by Windows Update might not be tested by Lenovo. It is recommended that you get device drivers from Lenovo. 1. Open the Start menu. 2. Click Settings ➙ Update & Security ➙ Windows Update. 3. Follow the on-screen instructions. Chapter 4. Troubleshooting, diagnostics, and recovery 31 32 User Guide Chapter 5. CRU replacement What are CRUs Customer Replaceable Units (CRUs) are parts that can be upgraded or replaced by the customer. Lenovo computers contain the following types of CRUs: • Self-service CRUs: Refer to parts that can be installed or replaced easily by customer themselves or by trained service technicians at an additional cost. • Optional-service CRUs: Refer to parts that can be installed or replaced by customers with a greater skill level. Trained service technicians can also provide service to install or replace the parts under the type of warranty designated for the customer’s machine. If you intend on installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You might be required to return the defective part that is replaced by the CRU. When return is required: (1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you might be charged for the replacement CRU if Lenovo does not receive the defective CRU within thirty (30) days of your receipt of the replacement CRU. For full details, see the Lenovo Limited Warranty documentation at: lenovo.com/warranty/llw_02 Refer to the following CRU list for your computer. Self-service CRUs • Computer cover • Computer stand • Keyboard • Mouse • Power adapter • Power cord Optional-service CRUs • Storage drive • Storage drive bracket Replace a CRU Follow the replacement procedure to replace a CRU. © Copyright Lenovo 2020 33 Power cord and power adapter Prerequisite Before you start, read Appendix A “Important safety information” on page 49 and print the following instructions. Note: Do not remove the power cord when the computer is connected to ac power. Otherwise, there might be a risk of short circuits. Replacement procedure 1. Turn off the computer and remove all connected peripheral devices and cables. 2. Remove the power cord from the computer. 3. Remove the power cord from the power adapter. 34 User Guide

4. Connect the power cord to the power adapter. 5. Connect the new power adapter to the computer. 6. Place the computer in an upright position. Then, reconnect all disconnected cables to the computer. Chapter 5. CRU replacement 35

Computer stand Prerequisite Before you start, read Appendix A “Important safety information” on page 49 and print the following instructions. Replacement procedure 1. Disconnect the computer from ac power and all connected cables. 2. Slightly press the hinge cover to remove it. 3. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the computer cover is facing up. 4. Remove the four screws and then remove the stand. 36 User Guide 5. Install the stand and then install the four screws. 6. Place the computer in an upright position. 7. Slightly press the hinge cover until it snaps into position. 8. Place the computer in an upright position. 9. Reconnect the ac power adapter and all disconnected cables to the computer. Note: If a locking device is available, use it to lock the computer. Chapter 5. CRU replacement 37 Computer cover Prerequisite Before you start, read Appendix A “Important safety information” on page 49 and print the following instructions. Before you open the computer cover, turn off the computer and wait several minutes until the computer is cool. Replacement procedure 1. Turn off the computer and remove all connected devices and cables. 2. Unlock any locking device that secures the computer cover. 3. Hold the sides of the computer and gently lay it down so that the computer cover is facing up. 4. Remove the computer stand. See “Computer stand” on page 36. 5. Remove the screw cover and then rotate the screw 90 degrees clockwise as shown. 38 User Guide 6. Remove the computer cover. 7. Install the computer cover. Chapter 5. CRU replacement 39 8. Rotate the screw for 90 degrees anticlockwise as shown, then close the screw cover. 9. Place the computer in an upright position. 10. Reconnect the ac power adapter and all disconnected cables to the computer. Note: If a locking device is available, use it to lock the computer. 40 User Guide Storage drive Prerequisite Before you start, read Appendix A “Important safety information” on page 49 and print the following instructions. Attention: The internal storage drive is sensitive. Inappropriate handling might cause damage and permanent loss of data. When handling the internal storage drive, observe the following guidelines: • Replace the internal storage drive only for upgrade or repair. The internal storage drive is not designed for frequent changes or replacement. • Before replacing the internal storage drive, make a backup copy of all the data that you want to keep. • Do not touch the contact edge of the internal storage drive. Otherwise, the internal storage drive might get damaged. • Do not apply pressure to the internal storage drive. • Do not make the internal storage drive subject to physical shocks or vibration. Put the internal storage drive on a soft material, such as cloth, to absorb physical shocks. Storage drive (with door) For models with storage drive door, please refer below replacement procedure to remove the storage drive and storage drive bracket. Replacement procedure 1. Disconnect the signal cable and the power cable from the storage drive. 2. Unlock the latch and open the storage drive door. Chapter 5. CRU replacement 41

3. Pull the storage drive and the bracket out. 4. Remove the storage drive from the bracket. 5. Install the storage drive into the bracket. a. Insert the storage drive into the two pins on the right side of the bracket. b. Bend the left side of the bracket to install the other two pins. 42 User Guide

6. Install the storage drive and the bracket. 7. Close the storage drive door and lock the latch. 8. Connect the signal cable and the power cable to the new storage drive. 9. Reinstall all removed parts. Then, reconnect the ac power adapter and all disconnected cables to the computer. Note: If a locking device is available, use it to lock the computer. Storage drive (without door) For models without storage drive door, please refer below replacement procedure to remove the storage drive and storage drive bracket. Replacement Procedure 1. Disconnect the signal cable and the power cable from the storage drive. 2. Remove the computer stand. See “Computer stand” on page 36. 3. Remove the computer cover. See “Computer cover” on page 38. Chapter 5. CRU replacement 43 4. Remove the storage drive and then the storage drive bracket. 5. Install the storage drive bracket and then the storage drive. 6. Connect the signal cable and the power cable to the new storage drive. 7. Reinstall all removed parts. Then, reconnect the ac power adapter and all disconnected cables to the computer. Note: If a locking device is available, use it to lock the computer. 44 User Guide Chapter 6. Help and support Self-help resources Use the following self-help resources to learn more about the computer and troubleshoot problems. Resources How to access? Use Lenovo Vantage to: • Configure device settings.

• Download and install UEFI BIOS, drivers and firmware updates. • Secure you computer from outside threats. • Check the computer warranty status. • Access User Guide and helpful articles. Product documentation: • Safety and Warranty Guide • Setup Guide • This User Guide • Regulatory Notice Lenovo Support Web site with the latest support information of the following: • Drivers and software • Diagnostic solutions • Product and service warranty • Product and parts details • Knowledge base and frequently asked questions Windows help information • Open the Start menu and click Lenovo Vantage. • Use Windows Search. 1. Go to support.lenovo.com. 2. Detect your computer or select computer model manually. 3. Select Documentation and filter out the documentation you want. support.lenovo.com • Open the Start menu and click Get Help or Tips. • Use Windows Search or the Cortana® personal assistant. • Microsoft support Web site: support.microsoft.com

© Copyright Lenovo 2020 45 Call Lenovo If you have tried to correct the problem yourself and still need help, you can call Lenovo Customer Support Center. Before you contact Lenovo Prepare the following before you contact Lenovo: 1. Record the problem symptoms and details: • What is the problem? Is it continuous or intermittent? • Any error message or error code? • What operating system are you using? Which version? • Which software applications were running at the time of the problem? • Can the problem be reproduced? If so, how? 2. Record the system information: • Product name • Machine type and serial number The following illustration shows where to find the machine type and serial number of your computer. Lenovo Customer Support Center During the warranty period, you can call Lenovo Customer Support Center for help. Telephone numbers For a list of the Lenovo Support phone numbers for your country or region, go to: pcsupport.lenovo.com/supportphonelist Note: Phone numbers are subject to change without notice. If the number for your country or region is not provided, contact your Lenovo reseller or Lenovo marketing representative. Services available during the warranty period • Problem determination - Trained personnel are available to assist you with determining if you have a hardware problem and deciding what action is necessary to fix the problem. • Lenovo hardware repair - If the problem is determined to be caused by Lenovo hardware under warranty, trained service personnel are available to provide the applicable level of service. • Engineering change management - Occasionally, there might be changes that are required after a product has been sold. Lenovo or your reseller, if authorized by Lenovo, will make selected Engineering Changes (ECs) that apply to your hardware available. 46 User Guide Services not covered • Replacement or use of parts not manufactured for or by Lenovo or nonwarranted parts • Identification of software problem sources • Configuration of UEFI BIOS as part of an installation or upgrade • Changes, modifications, or upgrades to device drivers • Installation and maintenance of network operating systems (NOS) • Installation and maintenance of programs For the terms and conditions of the Lenovo Limited Warranty that apply to your Lenovo hardware product, see “Warranty information” in the Safety and Warranty Guide that comes with your computer. Purchase additional services During and after the warranty period, you can purchase additional services from Lenovo at: lenovo.com/services Service availability and service name might vary by country or region. Chapter 6. Help and support 47 48 User Guide Appendix A. Important safety information Safety notices This information can help you safely use your computer. Follow and retain all information included with your computer. The information in this document does not alter the terms of your purchase agreement or the Limited Warranty. For more information, see "Warranty Information" in the Safety and Warranty Guide that comes with your computer. Customer safety is important. Our products are developed to be safe and effective. However, personal computers are electronic devices. Power cords, power adapters, and other features can create potential safety risks that can result in physical injury or property damage, especially if misused. To reduce these risks, follow the instructions included with your product, observe all warnings on the product and in the operating instructions, and review the information included in this document carefully. By carefully following the information contained in this document and provided with your product, you can help protect yourself from hazards and create a safer computer work environment. If the computer is used in a manner not specified by the manufacturer, the protection provided by the computer may be impaired. Note: This information includes references to power adapters and batteries. In addition, some products (such as speakers and monitors) ship with external power adapters. If you have such a product, this information applies to your product. In addition, computer products contain a coin-sized internal battery that provides power to the system clock even when the computer is unplugged, so the battery safety information applies to all computer products. Conditions that require immediate action Products can become damaged due to misuse or neglect. Some product damage is serious enough that the product should not be used again until it has been inspected and, if necessary, repaired by an authorized servicer. As with any electronic device, pay close attention to the product when it is turned on. On very rare occasions, you might notice an odor or see a puff of smoke or sparks vent from your product. You might also hear sounds like popping, cracking, or hissing. These might merely mean that an internal electronic component has failed in a safe and controlled manner. Or, they might indicate a potential safety issue. Do not take risks or attempt to diagnose the situation yourself. Contact the Customer Support Center for further guidance. For a list of Service and Support phone numbers, see the following Web site: pcsupport.lenovo.com/supportphonelist Frequently inspect your computer and its components for damage, wear, or signs of danger. If you have any question about the condition of a component, do not use the product. Contact the Customer Support Center or the product manufacturer for instructions on how to inspect the product and have it repaired, if necessary. In the unlikely event that you notice any of the following conditions, or if you have any safety concerns with your product, stop using the product and unplug it from the power source and telecommunication lines until you can speak to the Customer Support Center for further guidance. • Power cords, plugs, power adapters, extension cords, surge protectors, or power supplies that are cracked, broken, or damaged. © Copyright Lenovo 2020 49 • Signs of overheating, smoke, sparks, or fire. • Damage to a battery (such as cracks, dents, or creases), discharge from a battery, or a buildup of foreign substances on the battery. • A cracking, hissing, or popping sound, or strong odor that comes from the product. • Signs that liquid has been spilled or an object has fallen onto the computer product, the power cord, or power adapter. • The computer product, power cord, or power adapter has been exposed to water. • The product has been dropped or damaged in any way. • The product does not operate normally when you follow the operating instructions. Note: If you notice these conditions with a product (such as an extension cord) that is not manufactured for or by Lenovo, stop using that product until you can contact the product manufacturer for further instructions, or until you get a suitable replacement. Service and upgrades Do not attempt to service a product yourself unless instructed to do so by the Customer Support Center or your documentation. Only use a Service Provider who is approved to repair your particular product. Note: Some computer parts can be upgraded or replaced by the customer. Upgrades typically are referred to as options. Replacement parts approved for customer installation are referred to as Customer Replaceable Units, or CRUs. Lenovo provides documentation with instructions when it is appropriate for customers to install options or replace CRUs. You must closely follow all instructions when installing or replacing parts. The Off state of a power indicator does not necessarily mean that voltage levels inside a product are zero. Before you remove the covers from a product equipped with a power cord, always ensure that the power is turned off and that the product is unplugged from any power source. If you have any questions or concerns, contact the Customer Support Center. Although there are no moving parts in the computer after the power cord has been disconnected, the following warnings are required for your safety. Moving Parts: Keep fingers and other parts of your body away from hazardous, moving parts. If you suffer an injury, seek medical care immediately. Hot Surface: Avoid contact with hot components inside the computer. During operation, some components become hot enough to burn the skin. Before you open the computer cover, turn off the computer, disconnect power, and wait approximately 10 minutes for the components to cool. After replacing a CRU, reinstall all protective covers, including the computer cover, before connecting power and operating the computer. This action is important to help prevent unexpected electrical shock and help ensure the containment of an unexpected fire that could happen under extremely rare conditions. 50 User Guide Sharp Edges: When replacing CRUs, be cautious of sharp edges or corners that might cause injury. If you suffer an injury, seek medical care immediately. Power cords and power adapters DANGER Use only the power cords and power adapters supplied by the product manufacturer. The power cords shall be safety approved. For Germany, it shall be H03VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types shall be used accordingly. Never wrap a power cord around a power adapter or other object. Doing so can stress the cord in ways that can cause the cord to fray, crack, or crimp. This can present a safety hazard. Always route power cords so that they will not be walked on, tripped over, or pinched by objects. Protect power cords and power adapters from liquids. For instance, do not leave your power cord or power adapter near sinks, tubs, toilets, or on floors that are cleaned with liquid cleansers. Liquids can cause a short circuit, particularly if the power cord or power adapter has been stressed by misuse. Liquids also can cause gradual corrosion of power cord terminals and/or the connector terminals on a power adapter, which can eventually result in overheating. Ensure that all power cord connectors are securely and completely plugged into receptacles. Do not use any power adapter that shows corrosion at the ac input pins or shows signs of overheating (such as deformed plastic) at the ac input pins or anywhere on the power adapter. Do not use any power cords where the electrical contacts on either end show signs of corrosion or overheating or where the power cord appears to have been damaged in any way. To prevent possible overheating, do not cover the power adapter with clothing or other objects when the power adapter is plugged into an electrical outlet. Power cord notice Note: The power cord and adapter provided with this product are intended to be used with this product only. Do not use them with any other products. For your safety, Lenovo provides a power cord with a grounded attachment plug to use with this product. To avoid electrical shock, always use the power cord and plug with a properly grounded outlet. Power cords provided by Lenovo in the United States and Canada are listed by Underwriter’s Laboratories (UL) and certified by the Canadian Standards Association (CSA). Appendix A. Important safety information 51 For units intended to be operated at 115 volts: Use a UL-listed and CSA-certified cord set consisting of a minimum 18 AWG, Type SVT or SJT, three-conductor cord, a maximum of 15 feet in length and a parallel blade, grounding-type attachment plug rated 10 amperes, 125 volts. For units intended to be operated at 230 volts (U.S. use): Use a UL-listed and CSA-certified cord set consisting of a minimum 18 AWG, Type SVT or SJT, three-conductor cord, a maximum of 15 feet in length and a tandem blade, grounding-type attachment plug rated 10 amperes, 250 volts. For units intended to be operated at 230 volts (outside the U.S.): Use a cord set with a grounding-type attachment plug. The cord set should have the appropriate safety approvals for the country in which the equipment will be installed. Power cords provided by Lenovo for a specific country or region are usually available only in that country or region. For units intended to be operated in Germany: The power cords must be safety approved. For Germany, it must be H05VV-F, 3G, 0.75 mm2, or better. For other countries, the suitable types must be used accordingly. For units intended to be operated in Denmark: Use a cord set with a grounding-type attachment plug. The cord set should have the appropriate safety approvals for the country in which the equipment will be installed. For units intended to be operated in Norway, Sweden, Finland: Use a cord set with a two-prong attachment plug. The cord set should have the appropriate safety approvals for the country in which the equipment will be installed. If you intend to use your PC in a country or region that is different from your ordering location, please purchase an additional Lenovo power cord for the country or region where the PC will be used. Refer to the power cord guide provided in our Web site, support.lenovo.com, for details. Some countries and regions support multiple voltages, so make sure you order the appropriate power cord for the intended voltage. Extension cords and related devices Ensure that extension cords, surge protectors, uninterruptible power supplies, and power strips that you use are rated to handle the electrical requirements of the product. Never overload these devices. If power strips are used, the load should not exceed the power strip input rating. Consult an electrician for more information if you have questions about power loads, power requirements, and input ratings. 52 User Guide Plugs and outlets DANGER If a receptacle (power outlet) that you intend to use with your computer equipment appears to be damaged or corroded, do not use the outlet until it is replaced by a qualified electrician. Do not bend or modify the plug. If the plug is damaged, contact the manufacturer to obtain a replacement. Do not share an electrical outlet with other home or commercial appliances that draw large amounts of electricity; otherwise, unstable voltage might damage your computer, data, or attached devices. Some products are equipped with a three-pronged plug. This plug fits only into a grounded electrical outlet. This is a safety feature. Do not defeat this safety feature by trying to insert it into a non-grounded outlet. If you cannot insert the plug into the outlet, contact an electrician for an approved outlet adapter or to replace the outlet with one that enables this safety feature. Never overload an electrical outlet. The overall system load should not exceed 80 percent of the branch circuit rating. Consult an electrician for more information if you have questions about power loads and branch circuit ratings. Be sure that the power outlet you are using is properly wired, easily accessible, and located close to the equipment. Do not fully extend power cords in a way that will stress the cords. Be sure that the power outlet provides the correct voltage and current for the product you are installing. Carefully connect and disconnect the equipment from the electrical outlet. Power supply statement Never remove the cover on a power supply or any part that has the following label attached. Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a problem with one of these parts, contact a service technician. External devices CAUTION: Do not connect or disconnect any external device cables other than Universal Serial Bus (USB) and 1394 cables while the computer power is on; otherwise, you might damage your computer. To avoid possible damage to attached devices, wait at least five seconds after the computer is shut down to disconnect external devices. Appendix A. Important safety information 53 Lithium coin-cell battery notice DANGER Danger of explosion if battery is incorrectly replaced. If the coin-cell battery is not a CRU, do not attempt to replace the coin-cell battery. Replacement of the battery must be done by a Lenovo-authorized repair facility or technician. The Lenovo-authorized repair facilities or technicians recycle Lenovo batteries according to local laws and regulations. When replacing the lithium coin-cell battery, use only the same type or equivalent type that is recommended by the manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of. Swallowing the lithium coin-cell battery will cause chocking or severe internal burns in just two hours and might even result in death. Keep batteries away from children. If the lithium coin-cell battery is swallowed or placed inside any part of the body, seek medical care immediately. Do not: • Throw or immerse into water • Heat to more than 100 °C (212°F) • Repair or disassemble • Leave in an extremely low air pressure environment • Leave in an extremely high-temperature environment • Crush, puncture, cut, or incinerate Dispose of the battery as required by local ordinances or regulations. The following statement applies to users in the state of California, U.S.A. California Perchlorate Information: Products containing manganese dioxide lithium coin-cell batteries may contain perchlorate. Perchlorate Material - special handling may apply, see dtsc.ca.gov/hazardouswaste/ perchlorate/. Heat and product ventilation Computers, power adapters, and many accessories can generate heat when turned on and when batteries are charging. Always follow these basic precautions: • Do not leave your computer, power adapter, or accessories in contact with your lap or any part of your body for an extended period when the products are functioning or when the battery is charging. Your 54 User Guide computer, power adapter, and many accessories produce some heat during normal operation. Extended contact with the body could cause discomfort or, potentially, a skin burn. • Do not charge the battery or operate your computer, power adapter, or accessories near flammable materials or in explosive environments. • Ventilation slots, fans, and heat sinks are provided with the product for safety, comfort, and reliable operation. These features might inadvertently become blocked by placing the product on a bed, sofa, carpet, or other flexible surface. Never block, cover, or disable these features. Inspect your desktop computer for dust accumulation at least once every three months. Before inspecting your computer, turn off the power and unplug the computer's power cord from the electrical outlet; then remove any dust from vents and perforations in the bezel. If you notice external dust accumulation, then examine and remove dust from the inside of the computer including heat sink inlet fins, power supply vents, and fans. Always turn off and unplug the computer before opening the cover. If possible, avoid operating your computer within two feet of high-traffic areas. If you must operate your computer in or near a high-traffic area, inspect and, if necessary, clean your computer more frequently. For your safety and to maintain optimum computer performance, always follow these basic precautions with your desktop computer: • Keep the cover closed whenever the computer is plugged in. • Regularly inspect the outside of the computer for dust accumulation. • Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required for computers in dusty or high-traffic areas. • Do not restrict or block any ventilation openings. • Do not store or operate your computer inside furniture, as this might increase the risk of overheating. • Airflow temperatures into the computer should not exceed 35°C (95°F). • Do not install air filtration devices. They may interfere with proper cooling. Electrical current safety information DANGER Electric current from power, telephone, and communication cables is hazardous. To avoid a shock hazard: • Do not use your computer during a lightning storm. • Do not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm. • Connect all power cords to a properly wired and grounded electrical outlet. • Connect properly wired outlets to any equipment that will be attached to this product. • Whenever possible, use one hand only to connect or disconnect signal cables. • Never turn on any equipment when there is evidence of fire, water, or structural damage. • Disconnect the attached power cords, battery, and all the cables before you open the device covers, unless instructed otherwise in the installation and configuration procedures. • Do not use your computer until all internal parts enclosures are fastened into place. Never use the computer when internal parts and circuits are exposed. Appendix A. Important safety information 55 DANGER Connect and disconnect cables as described in the following procedures when installing, moving, or opening covers on this product or attached devices.

To connect: 1. Turn everything OFF. 2. First, attach all cables to devices. 3. Attach signal cables to connectors. 4. Attach power cords to outlets. 5. Turn devices ON. To disconnect: 1. Turn everything OFF. 2. First, remove power cords from outlets. 3. Remove signal cables from connectors. 4. Remove all cables from devices.

The power cord must be disconnected from the wall outlet or receptacle before installing all other electrical cables connected to the computer. The power cord may be reconnected to the wall outlet or receptacle only after all other electrical cables have been connected to the computer. DANGER During electrical storms, do not perform any replacement and do not connect the telephone cable to or disconnect it from the telephone outlet on the wall. Laser safety information CAUTION: When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) are installed, note the following: • Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no serviceable parts inside the device. • Use of controls or adjustments or performance of procedures other than those specified herein might result in hazardous radiation exposure. DANGER Some laser products contain an embedded Class 3B laser diode. Note the following: Laser radiation when open. Do not stare into the beam, do not view directly with optical instruments, and avoid direct exposure to the beam. 56 User Guide Liquid crystal display (LCD) notice DANGER To avoid shock hazards: • Do not remove the covers. • Do not operate this product unless the stand is attached. • Do not connect or disconnect this product during an electrical storm. • The power cord plug must be connected to a properly wired and grounded power outlet. • Any equipment to which this product will be attached must also be connected to properly wired and grounded power outlets. • To isolate the monitor from the electrical supply, you must remove the plug from the power outlet. The power outlet should be easily accessible. Handling: • If your monitor weighs more than 18 kg (39.68 lb), we recommend that it be moved or lifted by two people. Product disposal (TFT monitors): • The fluorescent lamp in the liquid crystal display contains mercury; dispose according to local, state, or federal laws. Battery warnings: • Risk of explosion if battery is replaced by an incorrect type. • Dispose of used batteries according to the instructions. Use earphones, headphones, or a headset • If your computer has both a headphone connector and an audio line-out connector, always use the headphone connector for earphones, headphones, or a headset. However, the headphone connector does not support the microphone of the headset. • If your computer has both a headset connector and an audio line-out connector, always use the headset connector for earphones, headphones, or a headset. Excessive sound pressure from earphones and headphones can cause hearing loss. Adjustment of the equalizer to maximum increases the earphone and headphone output voltage and the sound pressure level. Therefore, to protect your hearing, adjust the equalizer to an appropriate level. Excessive use of headphones or earphones for a long period of time at high volume can be dangerous if the output of the headphone or earphone connectors do not comply with specifications of EN 50332-2. The headphone output connector of your computer complies with EN 50332-2 Sub clause 7. This specification limits the computer’s maximum wide band true RMS output voltage to 150 mV. To help protect against hearing loss, ensure that the headphones or earphones you use also comply with EN 50332-2 (Clause 7 Appendix A. Important safety information 57 Limits) or a wide band characteristic voltage of 75 mV. Using headphones that do not comply with EN 50332- 2 can be dangerous due to excessive sound pressure levels. If your Lenovo computer came with headphones or earphones in the package, as a set, the combination of the headphones or earphones and the computer already complies with the specifications of EN 50332-1. If different headphones or earphones are used, ensure that they comply with EN 50332-1 (Clause 6.5 Limitation Values). Using headphones that do not comply with EN 50332-1 can be dangerous due to excessive sound pressure levels. Choking hazard notice CHOKING HAZARD – Product contains small parts. Keep away from children under three years. Plastic bag notice DANGER Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of suffocation. Glass parts notice CAUTION: Some parts of your product may be made of glass. This glass could break if the product is dropped on a hard surface or receives a substantial impact. If glass breaks, do not touch or attempt to remove it. Stop using your product until the glass is replaced by trained service personnel. Computer placement notices Inappropriate computer placement might cause harm to children. • Place the computer on a sturdy piece of low-rise furniture or furniture that has been anchored. • Do not place the computer at the edge of the furniture. • Keep the computer cables out of the reach of children. • Some items, such as toys, might attract children. Keep such items away from the computer. Supervise children in rooms where the above safety instructions cannot be fully implemented. 58 User Guide Hazardous energy statement DANGER Disconnect all power cords from electrical outlets before removing the computer cover or any part that has the above label attached. DO NOT disassemble components that have the above label attached. There are no serviceable parts inside these components. Your product is designed for safe use. However, hazardous voltage, current, and energy levels are present inside any component that has this label attached. Disassembling of these components might cause fire or might even result in death. If you suspect a problem with one of these parts, contact a service technician. CAUTION: Bright Light, possible skin or eye damage. Disconnect power before servicing. CAUTION: Infrared Light, possible skin or eye damage. Disconnect power before servicing. Eye comfort The property of the display in combination with following notes result in reduced eye fatigue and increased comfort. For tips on how to minimize visual fatigue, please go to lenovo.com/us/en/safecomp/ to visit “Minimizing Visual Fatigue”. Tip-over hazard prevention notice The computer may cause harm to children if it is not located in an appropriate place. Follow the tips below to protect children from harm caused by the computer tipping over: • Place the computers or monitors on sturdy furniture with a low base or furniture that has been anchored. Push the computers or monitors as far from the edge of the furniture as possible.. • Keep remote controls, toys, and other items that might attract children away from the computers or monitors • Keep the computer or monitor cables out the reach of the children. • Supervise children in rooms where these safety tips have not been followed. CAUTION: Some parts of your product may be made of glass. This glass could break if the product is dropped on a hard surface or receives a substantial impact. If glass breaks, do not touch it or attempt to remove it. Stop using your product until the glass is replaced by trained service personnel. Appendix A. Important safety information 59 Static electricity prevention Static electricity, although harmless to you, can seriously damage computer components and options. Improper handling of static-sensitive parts can damage the part. When you unpack an option or CRU, do not open the static-protective package containing the part until the instructions direct you to install it. When you handle options or CRUs, or perform any work inside the computer, take the following precautions to avoid static-electricity damage: • Limit your movement. Movement can cause static electricity to build up around you. • Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the edges. Never touch exposed circuitry. • Prevent others from touching components. • When you install a static-sensitive option or CRU, touch the static-protective package containing the part to a metal expansion-slot cover or other unpainted metal surface on the computer for at least two seconds. This reduces static electricity in the package and your body. • When possible, remove the static-sensitive part from the static-protective packaging and install the part without setting it down. When this is not possible, place the static-protective packaging on a smooth, level surface and place the part on it. • Do not place the part on the computer cover or other metal surface. Operating environment Temperature • Operating: From 10°C (50°F) to 35°C (95°F) • Storage or transportation: – For common desktop computers: From -40°C (-40°F) to 55°C (131°F) – For all-in-one desktop computers: From -20°C (-4°F) to 55°C (131°F) Note: If your computer is stored or transported in temperatures less than 10°C (50°F), allow the computer to rise slowly to an optimal operating temperature before use. This process might take up to two hours. Using the computer in a lower operating temperature might result in irreparable damage to your computer. Relative humidity • Operating: 35%-80% (non-condensing) • Storage: 20%–93% (non-condensing) Atmospheric pressure 86 kPa to 106 kPa Cleaning and maintenance With appropriate care and maintenance, your computer will serve you reliably. The following topics offer information to help you keep your computer working with best performance. Basic maintenance tips Here are some basic points about keeping your computer functioning properly: • Keep the computer in a clean, dry environment. Ensure that the computer rests on a flat, steady surface. 60 User Guide • Do not cover any of air vents. These air vents provide airflow to keep the computer from overheating. • Keep electrical appliances such as an electric fan, radio, high-powered speakers, air conditioner, and microwave oven away from your computer because the strong magnetic fields generated by these appliances can damage the monitor and data on the storage drive. • Keep food and drinks away from all parts of the computer. Food particles and spills might make the keyboard and mouse stick and unusable. • Do not get the power switches or other controls wet. Moisture can damage these parts and cause an electrical hazard. • Always disconnect a power cord by grasping the plug instead of the cord. • Keep the computer software, device drivers, and operating system up-to-date. • Empty your recycle bin on a regular basis. • Clean out your Inbox, Sent Items, and Deleted Items folders in your e-mail application on a regular basis. • Clean up files and free up storage drive space and memory space occasionally to prevent performance problems. • Keep a log book. Entries might include major software or hardware changes, device-driver updates, intermittent problems and what you did to resolve them, and other issues you might have experienced. The cause of a problem might be change in hardware, change in software, or any other actions that might have taken place. A log book can help you or a Lenovo technician determine the cause of a problem. • Back up your data on the storage drive regularly. You can restore the storage drive from a backup. • Create a recovery medium as early as possible. You can use the recovery medium to recover your operating system even if Windows fails to start up. • Get the most up-to-date operating system update patches, software programs, and device drivers. Maintenance tips about moving the computer Before moving the computer, take the following precautions: 1. Back up your data on the storage drive. 2. Remove any media from the drives and turn off all connected devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 3. If you saved the original shipping cartons and packing materials, use them to pack the units. If you are using different cartons, cushion the units to avoid damage. When you move the computer to another country or region, you must take local electrical standards into consideration. If the local electrical outlet style is different from the type you are currently using, contact the Lenovo Customer Support Center to purchase either an electrical plug adapter or a new power cord. Clean your computer CAUTION: Remove any media from the drives and turn off all connected devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. It is a good practice to clean your computer periodically to protect the surfaces and ensure trouble-free operation. Clean the computer surface: Wipe it with a lint-free cloth dampened in mild soap and water. Avoid applying liquids directly to the surface. Appendix A. Important safety information 61 Clean the keyboard: Wipe the keys one by one with a lint-free cloth dampened in mild soap and water. If you wipe several keys at a time, the cloth might hook onto an adjacent key and possibly damage it. Avoid spraying cleaner directly onto the keyboard. To remove any crumbs or dust from beneath the keys, you can use a camera blower with a brush or use cool air from a hair dryer. Clean the computer screen: Scratches, oil, dust, chemicals, and ultraviolet light can affect the performance of your computer screen. Use a dry, soft lint-free cloth to wipe the screen gently. If you see a scratchlike mark on your screen, it might be a stain. Wipe or dust the stain gently with a soft, dry cloth. If the stain remains, moisten a soft, lint-free cloth with water or eyeglass cleaner, but do not apply liquids directly to your computer screen. Ensure that the computer screen is dry before closing it. 62 User Guide Appendix B. Accessibility and ergonomic information This chapter provides information about accessibility and ergonomics. Accessibility information Lenovo is committed to providing users who have hearing, vision, and mobility limitations with greater access to information and technology. This section provides information about the ways these users can get the most out of their computer experience. You also can get the most up-to-date accessibility information from the following Web site: lenovo.com/accessibility Keyboard shortcuts The following list contains keyboard shortcuts that can help make your computer easier to use. Note: Depending on your keyboard, some of the following keyboard shortcuts might not be available. • Windows logo key + U: Open Ease of Access Center • Right Shift for eight seconds: Turn on or turn off Filter Keys • Shift five times: Turn on or turn off Sticky Keys • Num Lock for five seconds: Turn on or turn off Toggle Keys • Left Alt+Left Shift+Num Lock: Turn on or turn off Mouse Keys • Left Alt+Left Shift+PrtScn (or PrtSc): Turn on or turn off High Contrast For more information, go to windows.microsoft.com, and then search using any of the following keywords: keyboard shortcuts, key combinations, shortcut keys. Ease of Access Center Ease of Access Center on the Windows operating system enables you to configure your computers to suit their physical and cognitive needs. To access Ease of Access Center: 1. Go to Control Panel and view by Category. 2. Click Ease of Access ➙ Ease of Access Center. 3. Choose the appropriate tool by following the on-screen instructions. Ease of Access Center mainly includes the following tools: • Magnifier Magnifier is a useful utility that enlarges the entire screen or part of the screen so that you can see the items better. • Narrator Narrator is a screen reader that reads what is displayed on the screen aloud and describes events such as error messages. • On-Screen Keyboard If you prefer to type or enter data into your computer using a mouse, joystick, or other pointing device instead of a physical keyboard, you can use On-Screen Keyboard. On-Screen Keyboard displays a visual © Copyright Lenovo 2020 63 keyboard with all the standard keys. You can select keys using the mouse or another pointing device, or you can tap to select the keys if your computer supports multi-touch screen. • High Contrast High Contrast is a feature that heightens the color contrast of some text and images on your screen. As a result, those items are more distinct and easier to identify. • Personalized keyboard Adjust keyboard settings to make your keyboard easier to use. For example, you can use your keyboard to control the pointer and make the keyboard easier to type certain key combinations. • Personalized mouse Adjust mouse settings to make your mouse easier to use. For example, you can change the pointer appearance and make your mouse easier to manage windows. Speech Recognition Speech Recognition enables you to control your computer by voice. You can use verbal instructions to control the keyboard and mouse. With verbal instructions, you can start programs, open menus, click objects on the screen, dictate text into documents, and write and send e-mails. To use Speech Recognition: 1. Go to Control Panel and view by Category. 2. Click Ease of Access ➙ Speech Recognition. 3. Follow the on-screen instructions. Screen-reader technologies Screen-reader technologies are primarily focused on software program interfaces, help systems, and various online documents. For additional information about screen readers, see the following: • Use PDFs with screen readers: adobe.com/accessibility.html?promoid=DJGVE • Use the JAWS screen reader: freedomscientific.com/Products/Blindness/JAWS • Use the NVDA screen reader: nvaccess.org/ Screen resolution You can make the text and images on your screen easier to read by adjusting the screen resolution of your computer. To adjust the screen resolution: 1. Right-click an empty area of the desktop and then click Display settings ➙ Display. 2. Follow the on-screen instructions. Note: Setting a resolution too low might prevent some items from fitting on the screen. Customizable item size You can make the items on your screen easier to read by changing the item size. • To change the item size temporarily, use the Magnifier tool in Ease of Access Center. • To change the item size permanently: 64 User Guide – Change the size of all the items on your screen. 1. Right-click an empty area of the desktop and then click Display settings ➙ Display. 2. Change the item size by following the on-screen instructions. For some applications, your configuration might not take effect until you sign out and then sign in again. – Change the size of the items on a Web page. Press and hold Ctrl, and then press the plus-sign key (+) to enlarge or the minus-sign key (–) to reduce the text size. – Change the size of the items on the desktop or a window. Note: This function might not work on some windows. If your mouse has a wheel, press and hold Ctrl, and then scroll the wheel to change the item size. Industry-standard connectors Your computer provides industry-standard connectors that enable you to connect assistive devices. Documentation in accessible formats Lenovo provides electronic documentation in accessible formats, such as properly tagged PDF files or HyperText Markup Language (HTML) files. Lenovo electronic documentation is developed to ensure that visually impaired users can read the documentation through a screen reader. Each image in the documentation also includes adequate alternative text so that visually impaired users can understand the image when they use a screen reader. Ergonomic information Good ergonomic practice is important to get the most from your personal computer and to avoid discomfort. Arrange your workplace and the equipment you use to suit your individual needs and the kind of work that you perform. In addition, use healthy work habits to maximize your performance and comfort when using your computer. Working in the virtual office might mean adapting to frequent changes in your environment. Adapting to the surrounding light sources, active seating, and the placement of your computer hardware, can help you improve your performance and achieve greater comfort. This example shows someone in a conventional setting. Even when not in such a setting, you can follow many of these tips. Develop good habits, and they will serve you well. General posture: Make minor modifications in your working posture to deter the onset of discomfort caused by long periods of working in the same position. Frequent short breaks from your work also help to prevent minor discomfort associated with your working posture. Appendix B. Accessibility and ergonomic information 65

Display: Position the display to maintain a comfortable viewing distance of 510 mm to 760 mm (20 inches to 30 inches). Avoid glare or reflections on the display from overhead lighting or outside sources of light. Keep the display screen clean and set the brightness to levels that enable you to see the screen clearly. Press the brightness control keys to adjust display brightness. Head position: Keep your head and neck in a comfortable and neutral (vertical, or upright) position. Chair: Use a chair that gives you good back support and seat height adjustment. Use chair adjustments to best suit your comfort posture. Arm and hand position: If available, use chair arm rests or an area on your working surface to provide weight support for your arms. Keep your forearms, wrists, and hands in a relaxed and neutral (horizontal) position. Type with a soft touch without pounding the keys. Leg position: Keep your thighs parallel to the floor and your feet flat on the floor or on a footrest. 66 User Guide

Appendix C. Compliance information This chapter provides regulatory, environmental, RoHS, and ENERGY STAR information about Lenovo products. Radio frequency compliance statements Computer models equipped with wireless communications comply with the radio frequency and safety standards of any country or region in which it has been approved for wireless use. Besides this document, ensure that you read the Regulatory Notice for your country or region before using the wireless devices contained in your computer. Locate wireless regulatory notices For more information about the wireless regulatory notices, refer to the Regulatory Notice at: support.lenovo.com European Union-compliance with the Radio Equipment Directive • For computer models with wireless radio devices: This product is in conformity with all the requirements and essential norms that apply to EU Council Radio Equipment Directive 2014/53/EU on the approximation of the laws of the Member States relating to radio equipment. The full text of the system EU declaration of conformity and the EU wireless module declarations are available at: lenovo.com/us/en/compliance/eu-doc Lenovo cannot accept responsibility for any failure to satisfy the protection requirements resulting from a non-recommended modification of the product, including the installation of option cards from other manufacturers. This product has been tested and found to comply with the limits for Class B equipment according to European Standards harmonized in the Directives in compliance. The limits for Class B equipment were derived for typical residential environments to provide reasonable protection against interference with licensed communication devices. • For computer models without wireless radio devices: The full text of the system EU declaration of conformity is available at: lenovo.com/us/en/compliance/eu-doc Lenovo cannot accept responsibility for any failure to satisfy the protection requirements resulting from a non-recommended modification of the product, including the installation of option cards from other manufacturers. This product has been tested and found to comply with the limits for Class B equipment according to European Standards harmonized in the Directives in compliance. The limits for Class B equipment were derived for typical residential environments to provide reasonable protection against interference with licensed communication devices. Brazil Este equipamento não tem direito à proteção contra interferência prejudicial e não pode causar interferência em sistemas devidamente autorizados. This equipment is not protected against harmful interference and may not cause interference with duly authorized systems. © Copyright Lenovo 2020 67 Mexico Advertencia: En Mexico la operación de este equipo está sujeta a las siguientes dos condiciones: (1) es posible que este equipo o dispositivo no cause interferencia perjudicial y (2) este equipo o dispositivo debe aceptar cualquier interferencia, incluyendo la que pueda causar su operación no deseada. Singapore Korea 무선설비 전파 혼신 (사용주파수 2400∼2483.5 , 5725∼5825 무선제품해당) 해당 무선설비가 전파혼신 가능성이 있으므로 인명안전과 관련된 서비스는 할 수 없음 SAR 정보 본 장치는 전파 노출에 대한 가이드라인을 충족합니다. 본 장치는 무선 송수신기 입니다. 본 장치는 국제 가이드라인으로 권장되는 전파 노출에 대한 제한을 초과하지 않도록 설계되었습니다. 장치 액세서리 및 최신 부품을 사용할 경우 SAR 값이 달라질 수 있 습니다. SAR 값은 국가 보고 및 테스트 요구 사항과 네트워크 대역에 따라 다를 수 있습니다. 본 장치 는 사람의 신체에서 20mm 이상의 거리에서 사용할 수 있습니다. Environmental information of countries and regions This section provides environmental, recycling, and RoHS information about Lenovo products. Recycling and environmental information Lenovo encourages owners of information technology (IT) equipment to responsibly recycle their equipment when it is no longer needed. Lenovo offers a variety of programs and services to assist equipment owners in recycling their IT products. For information about recycling Lenovo products, go to: lenovo.com/us/en/compliance/recycling The latest environmental information about our products is available at: lenovo.com/us/en/compliance/eco-declaration Important WEEE information The WEEE marking on Lenovo products applies to countries with WEEE and e-waste regulations (for example, the European WEEE Directive, India E-Waste Management Rules). Appliances are labeled in accordance with local regulations concerning waste electrical and electronic equipment (WEEE). These regulations determine the framework for the return and recycling of used appliances as applicable within 68 User Guide each geography. This label is applied to various products to indicate that the product is not to be thrown away, but rather put in the established collection systems for reclaiming these end of life products. Users of electrical and electronic equipment (EEE) with the WEEE marking must not dispose of end of life EEE as unsorted municipal waste, but use the collection framework available to them for the return, recycle, and recovery of WEEE and to minimize any potential effects of EEE on the environment and human health due to the presence of hazardous substances. Lenovo electrical and electronic equipment (EEE) may contain parts and components, which at end-of-life might qualify as hazardous waste. EEE and waste electrical and electronic equipment (WEEE) can be delivered free of charge to the place of sale or any distributor that sells electrical and electronic equipment of the same nature and function as the used EEE or WEEE. For additional WEEE information, go to: lenovo.com/us/en/compliance/recycling WEEE information for Hungary Lenovo, as a producer, bears the cost incurred in connection with the fulfillment of Lenovo’s obligations under Hungary Law No. 197/2014 (VIII.1.) subsections (1)-(5) of section 12. Japan recycling statements Collect and recycle a disused Lenovo computer or monitor If you are a company employee and need to dispose of a Lenovo computer or monitor that is the property of the company, you must do so in accordance with the Law for Promotion of Effective Utilization of Resources. Computers and monitors are categorized as industrial waste and should be properly disposed of by an industrial waste disposal contractor certified by a local government. In accordance with the Law for Promotion of Effective Utilization of Resources, Lenovo Japan provides, through its PC Collecting and Recycling Services, for the collecting, reuse, and recycling of disused computers and monitors. For details, visit the Lenovo Web site at: lenovo.com/us/en/social_responsibility/sustainability/ptb_japan Pursuant to the Law for Promotion of Effective Utilization of Resources, the collecting and recycling of home used computers and monitors by the manufacturer was begun on October 1, 2003. This service is provided free of charge for home-used computers sold after October 1, 2003. For details, go to: lenovo.com/us/en/social_responsibility/sustainability/ptb_japan Dispose of Lenovo computer components Some Lenovo computer products sold in Japan may have components that contain heavy metals or other environmental sensitive substances. To properly dispose of disused components, such as a printed circuit board or drive, use the methods described above for collecting and recycling a disused computer or monitor. Dispose of disused lithium batteries from Lenovo computers A button-shaped lithium battery is installed inside your Lenovo computer to provide power to the computer clock while the computer is off or disconnected from the main power source. If you need to replace it with a new one, contact your place of purchase or contact Lenovo for service. If you need to dispose of a disused lithium battery, insulate it with vinyl tape, contact your place of purchase or an industrial-waste-disposal operator, and follow their instructions. Disposal of a lithium battery must comply with local ordinances and regulations. Appendix C. Compliance information 69 Brazil recycling information Declarações de Reciclagem no Brasil Descarte de um Produto Lenovo Fora de Uso Equipamentos elétricos e eletrônicos não devem ser descartados em lixo comum, mas enviados à pontos de coleta, autorizados pelo fabricante do produto para que sejam encaminhados e processados por empresas especializadas no manuseio de resíduos industriais, devidamente certificadas pelos orgãos ambientais, de acordo com a legislação local. A Lenovo possui um canal específico para auxiliá-lo no descarte desses produtos. Caso você possua um produto Lenovo em situação de descarte, ligue para o nosso SAC ou encaminhe um e-mail para: reciclar@lenovo.com, informando o modelo, número de série e cidade, a fim de enviarmos as instruções para o correto descarte do seu produto Lenovo. Battery recycling information for the European Union Notice: This mark applies only to countries within the European Union (EU). Batteries or packaging for batteries are labeled in accordance with European Directive 2006/66/EC concerning batteries and accumulators and waste batteries and accumulators. The Directive determines the framework for the return and recycling of used batteries and accumulators as applicable throughout the European Union. This label is applied to various batteries to indicate that the battery is not to be thrown away, but rather reclaimed upon end of life per this Directive. In accordance with the European Directive 2006/66/EC, batteries and accumulators are labeled to indicate that they are to be collected separately and recycled at end of life. The label on the battery may also include a chemical symbol for the metal concerned in the battery (Pb for lead, Hg for mercury, and Cd for cadmium). Users of batteries and accumulators must not dispose of batteries and accumulators as unsorted municipal waste, but use the collection framework available to customers for the return, recycling, and treatment of batteries and accumulators. Customer participation is important to minimize any potential effects of batteries and accumulators on the environment and human health due to the potential presence of hazardous substances. Before placing electrical and electronic equipment (EEE) in the waste collection stream or in waste collection facilities, the end user of equipment containing batteries and/or accumulators must remove those batteries and accumulators for separate collection. Disposing of lithium batteries and battery packs from Lenovo products A coin-cell type lithium battery might be installed inside your Lenovo product. You can find details about the battery in the product documentation. If the battery needs to be replaced, contact your place of purchase or contact Lenovo for service. If you need to dispose of a lithium battery, insulate it with vinyl tape, contact your place of purchase or a waste-disposal operator, and follow their instructions. 70 User Guide Disposing of battery packs from Lenovo products Your Lenovo device might contain a lithium-ion battery pack or a nickel metal hydride battery pack. You can find details on the battery pack in the product documentation. If you need to dispose of a battery pack, insulate it with vinyl tape, contact Lenovo sales, service, or your place of purchase, or a waste-disposal operator, and follow their instructions. You also can refer to the instructions provided in the user guide for your product. For proper collection and treatment, go to: lenovo.com/lenovo/environment Recycling information for mainland China Battery recycling information for Taiwan Restriction of Hazardous Substances (RoHS) Directive of countries and regions The latest environmental information about Lenovo products is available at: lenovo.com/us/en/compliance/eco-declaration European Union RoHS This Lenovo product, with included parts (cables, cords, and so on) meets the requirements of Directive 2011/65/EU on the restriction of the use of certain hazardous substances in electrical and electronic equipment ("RoHS recast" or "RoHS 2"). For more information about Lenovo worldwide compliance on RoHS, go to: lenovo.com/rohs-communication Turkish RoHS The Lenovo product meets the requirements of the Republic of Turkey Directive on the Restriction of the Use of Certain Hazardous Substances in Waste Electrical and Electronic Equipment (WEEE). Appendix C. Compliance information 71 Ukraine RoHS India RoHS RoHS compliant as per E-Waste (Management) Rules. Mainland China RoHS 72 User Guide

Taiwan RoHS Electromagnetic emission notices Federal Communications Commission (FCC) Supplier’s Declaration of Conformity The following information refers to product models and respective machine types below. Appendix C. Compliance information 73

Model name Machine Types (MT) IdeaCentre AIO 3 22ADA05 F0EX IdeaCentre AIO 3 22IMB05 F0EV IdeaCentre AIO 3 24ARE05 F0EW IdeaCentre AIO 3 24IMB05 F0EU IdeaCentre AIO 3 27IMB05 F0EY This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult an authorized dealer or service representative for help. Lenovo is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment. Unauthorized changes or modifications could void the user’s authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Responsible Party: Lenovo (United States) Incorporated 7001 Development Drive Morrisville, NC 27560 Email: FCC@lenovo.com Industry Canada compliance statement CAN ICES-3(B)/NMB-3(B) European Union conformity EU Contact: Lenovo (Slovakia), Landererova 12, 811 09 Bratislava, Slovakia Compliance with the EMC Directive This product is in conformity with the protection requirements of EU Council Directive 2014/30/EU on the approximation of the laws of the Member States relating to electromagnetic compatibility. 74 User Guide


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