DELL INSPIRON 537S (01) PDF MANUAL


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PDF Content Summary: Dell™ Inspiron™ 535s/537s/545s/546s Service Manual

Technical Overview Before You Begin Computer Cover Support Bracket Front Bezel Memory PCI and PCI Express Cards Drives Models DCSLE and DCSLF Fans Front I/O Panel Processor System Board Power Supply Battery System Setup

Notes, Cautions, and Warnings NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Information in this document is subject to change without notice. © 2009 Dell Inc. All rights reserved. Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and Inspiron are trademarks of Dell Inc.; Microsoft and Windows are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any proprietary interest in trademarks and trade names other than its own. March 2009 Rev. A00 Back to Contents Page Before You Begin Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Technical Specifications Recommended Tools Turning Off Your Computer Safety Instructions This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist: ● You have performed the steps in Turning Off Your Computer and Safety Instructions. ● You have read the safety information that ships with your computer. ● A component can be replaced or—if purchased separately—installed by performing the removal procedure in reverse order. Technical Specifications For information on technical specifications of your computer, see the Setup Guide that shipped with your computer or see the Dell Support website at support.dell.com. Recommended Tools The procedures in this document may require the following tools: ● Small Phillips screwdriver ● Small flat-blade screwdriver Turning Off Your Computer CAUTION: To avoid losing data, save and close all open files and exit all open programs before you turn off your computer. 1. Shut down the operating system. 2. Ensure that the computer and all attached devices are turned off. If your computer and attached devices did not automatically turn off when you shut down your operating system, press and hold the power button for about 4 seconds to turn them off. Safety Instructions Use the following safety guidelines to help protect your computer from potential damage and to help to ensure your own personal safety. WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell is not covered by your warranty. CAUTION: When you disconnect a cable, pull on its connector or on its pull-tab, not on the cable itself. Some cables have connectors with locking tabs; if you are disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned. CAUTION: To avoid damaging the computer, perform the following steps before you begin working inside the computer. 1. Ensure that the work surface is flat and clean to prevent the computer cover from being scratched. 2. Turn off your computer (see Turning Off Your Computer). CAUTION: To disconnect a network cable, first unplug the cable from your computer and then unplug the cable from the network device. 3. Disconnect all telephone or network cables from the computer. 4. Disconnect your computer and all attached devices from their electrical outlets. 5. Press and hold the power button while the system is unplugged to ground the system board. CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate static electricity, which could harm internal components. Back to Contents Page Back to Contents Page Front Bezel Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the Front Bezel Replacing the Front Bezel WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing the Front Bezel 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 1 bezel inserts (3) 2 bezel clamps (3) 3 bezel grips (3) 4 bezel 3. Grasp and lift the bezel grips one at a time to release it from the front panel. 4. Rotate and pull the bezel away from the front of the computer to release the bezel clamps from the bezel inserts. 5. Set aside the bezel in a secure location. Replacing the Front Bezel 1. Align and insert the bezel clamps into the bezel inserts. 2. Rotate the bezel towards the computer until the bezel grips snap into place. 3. Replace the computer cover (see Replacing the Computer Cover). Back to Contents Page Back to Contents Page Support Bracket Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the Support Bracket Replacing the Support Bracket WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing the Support Bracket 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). Inspiron™ 535s/537s a. Pull back the support bracket release latch and pivot the support bracket up. b. Lift the support bracket off the hinge tabs and set it aside in a secure place. 1 support bracket release latch 2 hinge tabs (2) 3 hinges (2) 4 support bracket Inspiron 545s/546s a. Remove the screw securing the card retention bracket. b. Push the card retention bracket towards the back of the computer. c. Pivot the support bracket up and lift it off the hinge tab. d. Set the support bracket aside in a secure location. 1 screw 2 card retention bracket 3 support bracket insert tab 4 hinge tab 5 hinge 6 support bracket Replacing the Support Bracket Inspiron 535s/537s 1. Align and insert the hinges at the bottom of the support bracket into the hinge tabs located along the edge of the computer. 2. Pull back the support bracket release latch and pivot the support bracket downward, until the support bracket release latch locks into place. 3. Replace the computer cover (see Replacing the Computer Cover). Inspiron 545s/546s 1. Align and insert the hinge at the bottom of the support bracket into the hinge tab located along the edge of the computer. 2. Pivot the support bracket downward. 3. Pull the card retention bracket towards the front of the computer. 4. Ensure that the support bracket insert tab is secured by the card retention bracket. 5. Replace the screw securing the card retention bracket. 6. Replace the computer cover (see Replacing the Computer Cover). Back to Contents Page Back to Contents Page PCI and PCI Express Cards Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing PCI and PCI Express Cards Replacing PCI and PCI Express Cards Configuring Your Computer After Removing or Installing a PCI/PCI Express Card WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing PCI and PCI Express Cards 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the support bracket (see Removing the Support Bracket). 4. If necessary, disconnect any cables connected to the card. ● For a PCI or PCI Express x1 card, grasp the card by its top corners, and ease it out of its connector. ● For a PCI Express x16 card, press down on the retention mechanism, grasp the card by its top corners, and then ease it out of its connector. 1 PCI Express x16 card 2 PCI Express x16 card slot 3 securing tab 4 retention mechanism 5 PCI Express x1 card slot 6 PCI Express x1 card 5. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer. 6. Replace the support bracket (see Replacing the Support Bracket). 7. Replace the computer cover (see Replacing the Computer Cover). 8. Reconnect the computer and devices to electrical outlets, and then turn them on. 9. Remove the card's driver from the operating system. 10. To complete the removal procedure, see Configuring Your Computer After Removing or Installing a PCI/PCI Express Card. Replacing PCI and PCI Express Cards 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover.) 3. Remove the support bracket (see Removing the Support Bracket). 4. Prepare the card for installation. See the documentation that came with the card for information on configuring the card, making internal connections, or otherwise customizing it for your computer. 5. If you are installing the PCI Express card into the x16 card connector, position the card so the securing slot is aligned with the securing tab. 1 PCI Express x16 card 2 PCI Express x16 card slot 3 securing tab 4 PCI Express x1 card slot 5 PCI Express x1 card 6. Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot. 1 fully-seated card 2 not fully-seated card 3 bracket within slot 4 bracket caught outside of slot 7. Replace the support bracket (see Replacing the Support Bracket). 8. Connect any cables that should be attached to the card. See the documentation for the card for information about the card's cable connections. CAUTION: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment. 9. Replace the computer cover (see Replacing the Computer Cover). 10. Reconnect the computer and devices to electrical outlets, and then turn them on. 11. To complete the installation, see Configuring Your Computer After Removing or Installing a PCI/PCI Express Card. Configuring Your Computer After Removing or Installing a PCI/PCI Express Card NOTE: For information on location of external connectors, see the Setup Guide. For information on installing drivers and software for your card, see the documentation that shipped with the card. Installed Removed Sound 1. Enter system setup (see 1. Enter system setup (see

Card Entering System Setup). 2. Go to Onboard Audio Controller and then change the setting to Disabled. 3. Connect the external audio devices to the sound card's connectors. Entering System Setup). 2. Go to Onboard Audio Controller and then change the setting to Enabled. 3. Connect the external audio devices to the computer's back panel connectors.

Network Card 1. Enter system setup (see Entering System Setup) 2. Go to Onboard LAN Controller and then change the setting to Disabled. 3. Connect the network cable to the network card's connector. 1. Enter system setup (see Entering System Setup) 2. Go to Onboard LAN Controller and then change the setting to Enabled. 3. Connect the network cable to the integrated network connector.

Back to Contents Page Back to Contents Page Battery Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the Battery Replacing the Battery WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: A new battery can explode if it is incorrectly installed. Replace the battery only with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the manufacturer's instructions. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing the Battery 1. Record all the screens in system setup (see System Setup) so that you can restore the correct settings after the new battery has been installed. 2. Follow the procedures in Before You Begin. 3. Remove the computer cover (see Removing the Computer Cover). 4. Locate the battery socket (see System Board Components). CAUTION: If you pry the battery out of its socket with a blunt object, be careful not to touch the system board with the object. Ensure that the object is inserted between the battery and the socket before you attempt to pry out the battery. Otherwise, you may damage the system board by prying off the socket or by breaking circuit traces on the system board. 1 battery release lever 5. Press the battery release lever to remove the battery. Replacing the Battery 1. Insert the new battery (CR2032) into the socket with the side labeled "+" facing up, and press the battery into place. 2. Replace the computer cover (see Replacing the Computer Cover). 3. Connect your computer and devices to electrical outlets, and then turn them on. 4. Enter system setup (see Entering System Setup) and restore the settings you recorded in step 1. Back to Contents Page Back to Contents Page Computer Cover Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the Computer Cover Replacing the Computer Cover WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. CAUTION: Ensure that sufficient space exists to support the system with the cover removed—at least 30 cm (1 ft.) of desk top space. Removing the Computer Cover 1. Follow the procedures in Before You Begin. 2. Close the chassis feet. 1 chassis feet 3. Lay your computer on its side with the computer cover facing up. 4. Remove the two screws securing the cover, using a screwdriver. 1 computer cover 2 screws (2) 3 front of the computer 5. Release the computer cover by pulling it away from the front of the computer and lifting it up. 6. Set the cover aside in a secure location. Replacing the Computer Cover 1. Ensure that all cables are connected, and fold cables out of the way. 2. Ensure that no tools or extra parts are left inside the computer. 3. Align the tabs at the bottom of the computer cover with the slots located along the edge of the computer. 4. Press the computer cover down and slide it towards the front of the computer until you feel a click or feel the computer cover securely installed. 5. Ensure that the cover is seated correctly. 6. Replace the two screws that secure the computer cover, using a screwdriver. 1 screws (2) 2 computer cover 3 slot 4 front of the computer 7. Open the chassis feet. 8. Place the computer in an upright position. CAUTION: Ensure that none of the system air-vents are blocked. Blocking them would cause serious thermal problems.Back to Contents Page Back to Contents Page Processor Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the Processor Replacing the Processor WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. CAUTION: Do not perform the following steps unless you are familiar with hardware removal and replacement. Performing these steps incorrectly could damage your system board. For technical service, see the Setup Guide. Removing the Processor 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). CAUTION: Despite having a plastic shield, the processor fan and heat sink assembly may be very hot during normal operation. Be sure that it has had sufficient time to cool before you touch it. 3. Remove the processor fan and heat sink assembly from the computer (see Removing the Processor Fan and Heat Sink Assembly). NOTE: Unless a new heat sink is required for the new processor, reuse the original heat sink assembly when you replace the processor. 4. Press and push the release lever down and out to release it from the tab that secures it. 5. Open the processor cover, if applicable. Inspiron™ 535s/537s/545s 1 processor cover 2 processor 3 socket 4 release lever Inspiron 546s 1 processor 2 release lever 3 socket CAUTION: When removing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket. 6. Gently lift the processor to remove it from the socket. Leave the release lever extended in the release position so that the socket is ready for the new processor. Replacing the Processor CAUTION: Ground yourself by touching an unpainted metal surface on the back of the computer. CAUTION: When replacing the processor, do not touch any of the pins inside the socket or allow any objects to fall on the pins in the socket. 1. Follow the procedures in Before You Begin. 2. Unpack the new processor, being careful not to touch the underside of the processor. CAUTION: You must position the processor correctly in the socket to avoid permanent damage to the processor and the computer when you turn on the computer. 3. If the release lever on the socket is not fully extended, move it to that position. Inspiron 535s/537s/545s 1 front alignment notch 2 processor pin-1 indicator 3 rear alignment notch 4 processor cover 5 center cover latch 6 processor 7 socket 8 tab 9 release lever Inspiron 546s 1 socket 2 processor pin-1 indicator 3 processor 4 release lever 4. For Inspiron 535s/537s/545s, orient the front and rear alignment-notches on the processor with the front and rear alignment-notches on the socket. 5. Align the pin-1 corners of the processor and socket. CAUTION: To avoid damage, ensure that the processor aligns properly with the socket, and do not use excessive force when you install the processor. 6. Set the processor lightly in the socket and ensure that the processor is positioned correctly. 7. When the processor is fully seated in the socket, close the processor cover, if applicable. Ensure that the tab on the processor cover is positioned underneath the center cover latch on the socket. 8. Pivot the socket release lever back toward the socket, and snap it into place to secure the processor. 9. Clean the thermal grease from the bottom of the heat sink. CAUTION: Ensure that you apply new thermal grease. New thermal grease is critical for ensuring adequate thermal bonding, which is a requirement for optimal processor operation. 10. Apply the new thermal grease to the top of the processor. 11. Replace the processor fan and heat sink assembly (see Replacing the Processor Fan and Heat Sink Assembly). CAUTION: Ensure that the processor fan/heat sink assembly is correctly seated and secure. 12. Replace the computer cover (see Replacing the Computer Cover). Back to Contents Page Back to Contents Page Drives Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing a Hard Drive Replacing a Hard Drive Removing a Media Card Reader Replacing a Media Card Reader Removing an Optical Drive Replacing an Optical Drive WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing a Hard Drive CAUTION: If you are replacing a hard drive that contains data that you want to keep, back up your files before you begin this procedure. 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the support bracket (see Removing the Support Bracket). 4. Disconnect the power cable and the data cable from the hard drive. NOTE: If you are not replacing the hard drive at this time, disconnect the other end of the data cable from the system board and set it aside. You can use the data cable to install a hard drive at a later time. 5. Remove the hard drive. Inspiron™ 535s/537s a. Press in on the securing tab on the side of the hard drive and slide the hard drive out and up. 1 securing tab 2 power cable 3 data cable 4 hard drive 5 shoulder screws (4) Inspiron 545s/546s a. Pull the securing tab upwards and slide the hard drive out and up. 1 securing tab 2 power cable 3 data cable 4 hard drive 5 shoulder screws (4) 6. Replace the support bracket (see Replacing the Support Bracket). 7. Replace the computer cover (see Replacing the Computer Cover). 8. Connect the computer and other devices to an electrical outlet. 9. If removing the hard drive changes the drive configuration, ensure that you reflect these changes in system setup (see System Setup). Replacing a Hard Drive 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the support bracket (see Removing the Support Bracket). 4. Check the documentation for the drive to verify that it is configured for your computer. 5. If not present, attach the four shoulder screws to the hard drive. 6. Connect the power and data cables to the hard drive. 7. Connect the data cable to the system board connector. 8. Slide the hard drive into the hard drive bay, until the hard drive snaps in place. 9. Check all cables to be certain that they are properly connected and firmly seated. 10. Replace the support bracket (see Replacing the Support Bracket). 11. Replace the computer cover (see Replacing the Computer Cover). 12. Connect your computer and devices to electrical outlets, and then turn them on. 13. See the documentation that came with the drive for instructions on installing any software required for drive operation. 14. Check the System Setup for drive configuration changes (see Entering System Setup). Removing a Media Card Reader 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the front bezel (see Removing the Front Bezel). 4. Disconnect the FlexBay USB cable and the power cable from the back of the media card reader. NOTE: If you are not replacing the media card reader at this time, disconnect the other end of the FlexBay USB cable from the system board and set it aside. You can use the FlexBay USB cable to install a media card reader at a later time. 5. Remove the media card reader. Inspiron 535s/537s a. Press in on the securing tab on the side of the media card reader and slide it out. 1 power cable 2 FlexBay USB cable 3 securing tab 4 media card reader (not present on all computers) Inspiron 545s/546s a. Pull the securing tab upwards and slide the media card reader out. 1 power cable 2 FlexBay USB cable 3 securing tab 4 media card reader (not present on all computers) NOTE: The location of the connectors may vary depending on your system type. For more information, see System Board Components. 6. Replace the front bezel (see Replacing the Front Bezel). 7. Replace the computer cover (see Replacing the Computer Cover). 8. Connect your computer and devices to electrical outlets, and then turn them on. Replacing a Media Card Reader 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the front bezel (see Removing the Front Bezel). 4. If this is a new media card reader installation, remove the break-away metal plate. Align the tip of a Phillips screwdriver with the slot on the break-away metal plate and rotate the screwdriver outwards to break and remove the metal plate. 5. If not present, attach the two shoulder screws to the media card reader. 6. Gently slide the media card reader into the FlexBay slot, until the media card reader snaps in place. NOTE: Ensure that the media card reader is installed before the FlexBay USB cable is connected. 7. Connect the FlexBay USB cable to the back of the media card reader and to the internal USB connector on the system board (see System Board Components). 8. Connect the power cable to the back of the media card reader. 9. Replace the front bezel (see Replacing the Front Bezel). 10. Replace the computer cover (see Replacing the Computer Cover). 11. Connect your computer and devices to electrical outlets, and then turn them on. Removing an Optical Drive 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the front bezel (see Removing the Front Bezel). 4. Disconnect the power cable and the data cable from the back of the optical drive. NOTE: If you are not replacing the optical drive at this time, disconnect the other end of the data cable from the system board and set it aside. You can use the data cable to install an optical drive at a later time. 5. Remove the optical drive. Inspiron 535s/537s a. Press in on the securing tab on the side of the optical drive and slide it out. 1 data cable 2 power cable 3 securing tab 4 shoulder screws (2) 5 optical drive Inspiron 545s/546s a. Pull the securing tab upwards and slide the optical drive out. 1 data cable 2 power cable 3 securing tab 4 shoulder screws (2) 5 optical drive 6. Replace the front bezel (see Replacing the Front Bezel). 7. Replace the computer cover (see Replacing the Computer Cover). 8. Connect your computer and devices to electrical outlets, and then turn them on. 9. Configure the drives in system setup (see System Setup Options). Replacing an Optical Drive 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the front bezel (see Removing the Front Bezel). 4. If not present, attach the two shoulder screws to the optical drive. 5. Gently slide the optical drive into place. 6. Connect the power and data cables to the optical drive. 7. Connect the data cable to the system board connector. NOTE: The location of the connectors may vary depending on your system type. For more information, see System Board Components. 8. Replace the front bezel (see Replacing the Front Bezel). 9. Replace the computer cover (see Replacing the Computer Cover). 10. Connect your computer and devices to their electrical outlets, and turn them on. See the documentation that came with the drive for instructions on installing any software required for drive operation. 11. Check the System Setup for drive configuration changes (see Entering System Setup). Back to Contents Page Back to Contents Page Fans Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the Processor Fan and Heat Sink Assembly Replacing the Processor Fan and Heat Sink Assembly Removing the Chassis Fan Replacing the Chassis Fan WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against likelihood of electric shock, laceration by moving fan blades or other unexpected injuries, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing the Processor Fan and Heat Sink Assembly CAUTION: The processor fan with the heat sink is one single unit. Do not try to remove the fan separately. CAUTION: Do not touch the fan blades when you are removing the processor fan and heat sink assembly. This could damage the fan. 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Disconnect the processor fan and heat sink assembly cable from the processor fan connector on the system board (see System Board Components). 4. Carefully move away any cables that are routed over the processor fan and heat sink assembly. CAUTION: Despite having a plastic shield, the heat sink fan assembly may be very hot during normal operation. Be sure that it has had sufficient time to cool before you touch it. 5. Remove the processor fan and heat sink assembly. Inspiron™ 535s/537s/545s a. Loosen the four captive screws securing the processor fan and heat sink assembly and lift it straight up. 1 processor fan and heat sink assembly NOTE: The processor fan and heat sink assembly in your computer may not look exactly like the one shown in the illustration above. Inspiron 546s a. Rotate the clamp lever 180 degrees counter-clockwise to release the clamp grip from the bracket projection. b. Rotate the processor fan and heat sink assembly upward gently, and remove it from the computer. Lay the processor fan and heat sink assembly down on its top, with the thermal grease facing upward. 1 bracket 2 clamp grip 3 bracket projection 4 clamp lever 5 processor fan and heat sink assembly NOTE: The processor fan and heat sink assembly in your computer may not look exactly like the one shown in the illustration above. Replacing the Processor Fan and Heat Sink Assembly CAUTION: When reinstalling the fan, ensure that you do not pinch the wires that run between the system board and the fan. 1. Clean the thermal grease from the bottom of the processor fan and heat sink assembly. CAUTION: Ensure that you apply new thermal grease. New thermal grease is critical for ensuring adequate thermal bonding, which is a requirement for optimal processor operation. 2. Apply the new thermal grease to the top of the processor. 3. Replace the processor fan and heat sink assembly. Inspiron 535s/537s/545s a. Align the captive screws on the processor fan and heat sink assembly to the four metal screw hole projections on the system board. b. Tighten the four captive screws that secure the processor fan and heat sink assembly to the system board. NOTE: Ensure that the processor fan and heat sink assembly is correctly seated and secure. Inspiron 546s a. Place the processor fan and heat sink assembly back onto the bracket. b. Ensure that the two clamp grips are aligned with the two bracket projections. c. Hold the processor fan and heat sink fan assembly in place and rotate the clamp lever 180 degrees clockwise to secure the processor fan and heat sink assembly. 1 processor fan and heat sink assembly 2 clamp lever 3 bracket projection 4 clamp grip 5 bracket 4. Connect the processor fan and heat sink assembly cable to the fan connector on the system board (see System Board Components). 5. Replace the computer cover (see Replacing the Computer Cover). 6. Connect your computer and devices to an electrical outlet, and turn them on. Removing the Chassis Fan CAUTION: Do not touch the fan blades when you are removing the chassis fan. This could damage the fan. 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Disconnect the chassis fan cable from the chassis fan connector on the system board (see System Board Components). 4. Remove the screw securing the chassis fan. 5. Slide the chassis fan towards the front of the computer and lift it up. 1 screw 2 chassis fan Replacing the Chassis Fan 1. Follow the procedures in Before You Begin. 2. Align the top and bottom chassis fan tabs with the projections in the chassis, and slide the chassis fan towards the back of the computer. 1 bottom tab 2 top tabs (2) 3 screw 3. Replace the screw that secures the chassis fan. 4. Connect the chassis fan cable to the chassis fan connector on the system board (see System Board Components). 5. Replace the computer cover (see Replacing the Computer Cover). 6. Connect your computer and devices to an electrical outlet, and turn them on. Back to Contents Page Back to Contents Page Front I/O Panel Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the Front I/O Panel Replacing the Front I/O Panel WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing the Front I/O Panel NOTE: Note the routing of all cables as you remove them so that you can re-route them correctly when installing the new front I/O panel. 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the front bezel (see Removing the Front Bezel). 4. Remove the support bracket (see Removing the Support Bracket). 5. Remove the hard drive (see Removing a Hard Drive). CAUTION: When sliding the I/O panel out of the computer, be extremely careful. Carelessness may result in damage to the cable connectors and the cable routing clips. 6. Disconnect all the cables that are connected to the I/O panel from the system board connectors. 7. Remove the screw that secures the I/O panel to the chassis. 8. Slide the I/O panel towards the left and gently pull it out. 1 screw 2 I/O panel 3 I/O panel clamp slot Replacing the Front I/O Panel CAUTION: Take care not to damage the cable connectors and the cable routing clips when sliding the I/O panel into the I/O panel clamp slot. 1. Align and slide the I/O panel into the I/O panel clamp slot. 2. Replace the screw that secures the I/O panel to the chassis. 3. Connect the cables to the system board connectors. 4. Replace the hard drive (see Replacing a Hard Drive). 5. Replace the support bracket (see Replacing the Support Bracket). 6. Replace the front bezel (see Replacing the Front Bezel). 7. Replace the computer cover (see Replacing the Computer Cover). 8. Connect your computer and devices to an electrical outlet, and turn them on. Back to Contents Page Back to Contents Page Memory Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing Memory Replacing Memory Recommended Memory Configuration Setting Up Dual Channel Memory Configuration WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing Memory 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Locate the memory modules on the system board (see System Board Components). 4. Press out the securing clip at each end of the memory module connector. 1 memory module connector 2 securing clip 5. Grasp the memory module and pull it upwards. If the memory module is difficult to remove, gently ease the memory module back and forth to remove it from the connector. Replacing Memory 1. Follow the procedures in Before You Begin. 2. Press out the securing clip at each end of the memory module connector. 3. Follow the memory installation guidelines (see Recommended Memory Configuration). CAUTION: Do not install ECC memory modules. 4. Align the notch on the bottom of the memory module with the tab in the memory module connector. 1 cutouts (2) 2 tab 3 notch 4 memory module CAUTION: To avoid damage to the memory module, press the memory module straight down into the connector while you apply equal force to each end of the memory module. 5. Insert the memory module into the connector until the memory module snaps into position. If you insert the memory module correctly, the securing clips snap into the cutouts at each end of the memory module. 1 cutouts (2) 2 securing clip (snapped in position) 6. Replace the computer cover (see Replacing the Computer Cover). 7. Connect your computer and devices to electrical outlets, and then turn them on. If the message appears stating that memory size has changed, press <F1> to continue. 8. Log on to your computer. 9. Right-click the My Computer icon on your Microsoft® Windows® desktop and click Properties. 10. Click the General tab. 11. To verify that the memory is installed correctly, check the amount of memory (RAM) listed. Recommended Memory Configuration While installing or replacing memory, refer to the table below: Model One module Two modules Three modules Four modules

535s/537s DIMM1 DIMM1 DIMM2 NA NA

545s DIMM1 DIMM1 DIMM3 546s DIMM1 DIMM1 DIMM2 DIMM1 DIMM3 DIMM2 DIMM1 DIMM2 DIMM3 DIMM1 DIMM3 DIMM2 DIMM4 DIMM1 DIMM2 DIMM3 DIMM4

Setting Up Dual Channel Memory Configuration NOTE: Dual channel memory is not supported on Inspiron™ 535s/537s.Inspiron 545s

1 Pair A: matched pair of memory modules in connectors DIMM1 and DIMM3 Inspiron 546s 1 Pair B: matched pair of memory modules in connectors DIMM3 and DIMM4 Back to Contents Page 2 Pair B: matched pair of memory modules in connectors DIMM2 and DIMM4 2 Pair A: matched pair of memory modules in connectors DIMM1 and DIMM2

Back to Contents Page Power Supply Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the Power Supply Replacing the Power Supply WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage on dell.com at the following location: dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing the Power Supply 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Disconnect the DC power cables from the system board and the drives. Note the routing of the DC power cables underneath the tabs in the computer chassis as you remove them from the system board and drives. You must route these cables properly when you replace them to prevent them from being pinched or crimped. 4. Remove the support bracket (see Removing the Support Bracket). 5. Remove all the cables from the securing clip on the side of the power supply. 6. Remove the three screws that secure the power supply to the computer chassis. 1 screws (3) 2 power supply 3 release latch (only for Inspiron 535s and 537s) 7. For Inspiron 535s and 537s, press down on the release latch. Slide out the power supply and then lift it out. Replacing the Power Supply 1. For Inspiron 535s and 537s, press down on the release latch. Slide the replacement power supply towards the back of the computer. WARNING: Failure to replace and tighten all screws may cause electrical shock as these screws are a key part of the system grounding. 2. Replace the three screws that secure the power supply to the computer chassis. NOTE: Route the DC power cables under the chassis tabs. The cables must be properly routed to prevent the cables from being damaged. 3. Connect the DC power cables to the system board and drives. 4. Secure all the cables to the securing clip on the side of the power supply. NOTE: Double-check all cable connections to make sure they are secure. 5. Replace the support bracket (see Replacing the Support Bracket). 6. Replace the computer cover (see Replacing the Computer Cover). 7. Connect your computer and devices to an electrical outlet, and turn them on. Back to Contents Page Back to Contents Page System Setup Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Overview Entering System Setup Clearing Forgotten Passwords Clearing CMOS Settings Flashing the BIOS Overview Use System Setup: ● To change the system configuration information after you add, change, or remove any hardware in your computer. ● To set or change a user-selectable option such as the user password. ● To read the current amount of memory or set the type of hard drive installed. Before you use System Setup, it is recommended that you write down the system setup screen information for future reference. CAUTION: Do not change the settings in system setup unless you are an expert computer user. Certain changes can cause your computer to work incorrectly. Entering System Setup 1. Turn on (or restart) your computer. 2. When the DELL logo appears, press <F2> immediately. NOTE: Keyboard failure may result when a key on the keyboard is held down for extended periods of time. To avoid possible keyboard failure, press and release <F2> in even intervals until the system setup screen appears. If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft® Windows® desktop, then shut down your computer and try again. System Setup Screens Options List — This field appears on the top of the system setup window. The tabbed options contain features that define the configuration of your computer, including installed hardware, power conservation, and security features. Option Field — This field contains information about each option. In this field you can view your current settings and make changes to your settings. Use the right- and left-arrow keys to highlight an option. Press <Enter> to make that selection active. Help Field — This field provides context sensitive help based on the options selected. Key Functions — This field appears below the Option Field and lists keys and their functions within the active system setup field. System Setup Options NOTE: Depending on your computer and installed devices, the items listed in this section may not appear, or may not appear exactly as listed. Inspiron 535s/537s System Info System Displays the computer model number. BIOS Info Shows the BIOS version number and date information. Asset Tag Displays the asset tag for the computer, if present. Service Tag Displays the service tag of the computer. Processor Type Displays the processor type. Processor Level 2 Displays the amount of processor Level 2 cache. Cache Memory Installed Indicates the amount of installed memory. Memory Available Indicates the amount of available memory. Memory Speed Indicates the frequency of installed memory. Memory Channel Mode Indicates the channel mode of installed memory. System Memory Type Indicates the type of installed memory. Standard CMOS Features Date Displays current date in the format (mm:dd:yyyy). Time Displays current time in the format (hh:mm:ss). SATA 0 Displays the SATA drives connected to the SATA 0 connector. SATA 1 Displays the SATA drives connected to the SATA 1 connector. Halt On All Errors; All, But Keyboard (All, But Keyboard by default). Advanced BIOS Features CPU Feature ● Limit CPUID Value—Enabled; Disabled (Disabled by default). ● Execute Disable Bit—Enabled; Disabled (Enabled by default). ● Core Multi-Processing—Enabled; Disabled (Enabled by default). Boot Up Numlock Status Off; On (On by default). Module Bay Identifies the device installed in the module bay. Boot Device Configuration

Removable Boot Priority Hard Disk Boot Priority Used to set the device priority of removable devices like USB floppy drives. The items displayed are dynamically updated according to the removable devices connected. Used to set the device priority of hard drives. The items displayed are dynamically updated according to the hard drives detected.

CD/DVD Boot Priority Used to set the device priority of CD/DVD drives. The items displayed are dynamically updated according to the CD/DVD drives detected. Network Boot Priority Used to set the device priority of network devices. The items displayed are dynamically updated according to the network devices detected. USB Boot Priority Used to set the device priority of USB drives. The items displayed are dynamically updated according to the USB drives detected. First Boot Device Removable Dev.; Hard Drive; CD/DVD; Network; USB; Disabled (Removable Dev. by default). Second Boot Device Removable Dev.; Hard Drive; CD/DVD; Network; USB; Disabled (Hard Drive by default). Third Boot Device Removable Dev.; Hard Drive; CD/DVD; Network; USB; Disabled (CD/DVD by default). Fourth Boot Device Removable Dev.; Hard Drive; CD/DVD; Network; USB; Disabled (Network by default). Fifth Boot Device Removable Dev.; Hard Drive; CD/DVD; Network; USB; Disabled (USB by default). Boot Other Device Enabled; Disable (Enabled by default). Advanced Chipset Features Init Display First PCI Slot, Onboard (PCI Slot by default). Video Memory Size 1 MB, 8 MB (8 MB by default). DVMT Mode FIXED, DVMT (DVMT by default). DVMT/FIXED Memory Size 128 MB, 256 MB, MAX (128 MB by default). NOTE: The DVMT Mode and FIXED Memory Size features are not available in Inspiron 537s Integrated Peripherals USB Device Setting ● USB Controller—Enabled or Disabled (Enabled by default). ● USB Operation Mode—High Speed; Full Speed; Low Speed (High Speed by default).

Onboard SATA Controller Onboard AUDIO Controller Enabled or Disabled (Enabled by default). Enabled or Disabled (Enabled by default).

Onboard LAN Controller Enabled or Disabled (Enabled by default). Onboard LAN Boot ROM Enabled or Disabled (Disabled by default). Power Management Setup ACPI Suspend Type S1(POS); S3(STR) (S3(STR) by default). Remote Wake Up On; Off (On by default) Auto Power On Enabled; Disabled (Disabled by default). Auto Power On Date 0 Auto Power On Time 0:00:00 AC Recovery Off; On; Last (Off by default). Set Supervisor Password Supervisor Password Installed; Not Installed (Not Installed by default).

Change Supervisor Password Set User Password Press Enter to change the supervisor password.

User Password Installed; Not Installed (Not Installed by default). Change User Password Press Enter to change the user password. Inspiron 545s System Info System Displays the computer model number. BIOS Info Shows the BIOS version number and date information. Service Tag Displays the service tag of the computer. Processor Type Displays the processor type. Processor L2 Cache Displays the amount of processor Level 2 cache. Memory Installed Indicates the amount of installed memory. Memory Available Indicates the amount of available memory. Memory Speed Indicates the frequency of installed memory. Memory Channel Mode Indicates the channel mode of installed memory. Memory Technology Indicates the type of installed memory. Standard CMOS Features Date Displays current date in the format (mm:dd:yyyy). Time Displays current time in the format (hh:mm:ss). SATA 0 Displays the SATA drives connected to the SATA 0 connector. SATA 1 Displays the SATA drives connected to the SATA 1 connector. SATA 4 Displays the SATA drives connected to the SATA 4 connector. SATA 5 Displays the SATA drives connected to the SATA 5 connector. Halt On All Errors; All, But Keyboard (All, But Keyboard by default). Advanced BIOS Features CPU Feature ● Limit CPUID Value—Enabled; Disabled (Disabled by default). ● Execute Disable Bit—Enabled; Disabled (Enabled by default). ● Core Multi-Processing—Enabled; Disabled (Enabled by default). Boot Up Numlock Status Off; On (On by default). Module Bay Identifies the device installed in the module bay. Boot Device Configuration Hard Disk Boot Priority Used to set the device priority of hard drives. The items displayed are dynamically updated according to the hard drives detected. First Boot Device Removable; Hard Disk; CDROM; USB-CDROM; Disabled (Removable by default). Second Boot Device Removable; Hard Disk; CDROM; USB-CDROM; Disabled (Hard Disk by default). Third Boot Device Removable; Hard Disk; CDROM; USB-CDROM; Disabled (CDROM by default). Boot Other Device Enabled; Disable (Enabled by default). Advanced Chipset Features Init Display First PCI Slot, Onboard (PCI Slot by default). Video Memory Size 1 MB, 8 MB (8 MB by default). DVMT Mode FIXED, DVMT (DVMT by default). DVMT/FIXED Memory Size 128 MB, 256 MB, MAX (128 MB by default). Integrated Peripherals USB Device Setting ● USB Controller—Enabled or Disabled (Enabled by default). ● USB Operation Mode—High Speed; Full/Low Speed (High Speed by default). Onboard AUDIO Controller Enabled or Disabled (Enabled by default). Onboard LAN Controller Enabled or Disabled (Enabled by default). Onboard LAN Boot ROM Enabled or Disabled (Disabled by default). SATA Mode IDE; RAID (IDE by default). Power Management Setup ACPI Suspend Type S1(POS); S3(STR) (S3(STR) by default). Remote Wake Up On; Off (On by default). Auto Power On Enabled; Disabled (Disabled by default). Auto Power On Date 0 Auto Power On Time 0:00:00 AC Recovery Off; On; Last (Off by default). Set Supervisor Password Supervisor Password Installed; Not Installed (Not Installed by default).

Change Supervisor Password Set User Password Press Enter to change the supervisor password.

User Password Installed; Not Installed (Not Installed by default). Change User Password Press Enter to change the user password. Inspiron 546s System Info BIOS Info Shows the BIOS version number and date information. System Displays the computer model number. Asset Tag Displays the asset tag for the computer, if present. Service Tag Displays the service tag of the computer. Processor Type Displays the processor type. CPU Speed Displays the processor speed. Processor L2 Cache Displays the amount of processor Level 2 cache. Memory Installed Indicates the amount of installed memory. Memory Available Indicates the amount of available memory. Memory Speed Indicates the frequency of installed memory. Memory Channel Mode Indicates the channel mode of installed memory. Memory Technology Indicates the type of installed memory. Standard CMOS Features System Time Displays current time in the format (hh:mm:ss). System Date Displays current date in the format (mm:dd:yy). SATA 0 Displays the SATA drives connected to the SATA 0 connector. SATA 1 Displays the SATA drives connected to the SATA 1 connector. SATA 2 Displays the SATA drives connected to the SATA 2 connector. SATA 3 Displays the SATA drives connected to the SATA 3 connector. Advanced BIOS Features CPU Feature ● AMD Virtualization—Enabled; Disabled (Enabled by default). ● AMD Cool 'N' Quiet Function—Enabled; Disabled (Enabled by default). ● AMD Live!—indicates the AMD Live! status. USB Device Setting ● USB Controller—Enabled or Disabled (Enabled by default). ● USB Operation Mode—High Speed; Full/Low Speed (High Speed by default). Advanced Chipset Features Init Display First PCI-E 16X Slot; PCI-E 1X Slot; PCI Slot; Onboard (PCI-E 16X Slot by default). UMA Frame Buffer Size Auto; 32 MB; 64 MB; 128 MB; 256 MB; 512 MB (Auto by default). Onboard Audio Controller Auto; Disabled; Enabled (Enabled by default). HD Audio Disabled; Enabled (Enabled by default). Onboard LAN Controller Disabled; Enabled (Enabled by default). Onboard LAN Boot ROM Enabled; Disabled (Disabled by default). SATA Mode RAID; ATA (ATA by default). Module Bay Identifies the device installed in the module bay. Boot Device Configuration Boot Settings Configuration ● Fast Boot—Disabled; Enabled (Enabled by default). ● Numlock Key—OFF; ON (ON by default). ● Keyboard Errors—Report; Do Not Report (Report by default). Hard Disk Boot Priority ● 1st Boot Device—Removable; CD/DVD; Hard Drive; Disabled (Removable by default). ● 2nd Boot Device—Removable; CD/DVD; Hard Drive; Disabled (CD/DVD by default). ● 3rd Boot Device—Removable; CD/DVD; Hard Drive; Disabled (Hard Drive by default). Boot Other Device No; Yes (Yes by default). Power Management Setup ACPI Suspend Type S1(POS); S3(STR) (S3(STR) by default). C1E Support Disabled; Enabled (Disabled by default). Remote Wake Up Disabled; Enabled (Enabled by default). AC Recovery Off; On; Last (Off by default). Auto Power On Disabled; Enabled (Disabled by default). Auto Power On Date 0 Auto Power On Time 0:00:00 BIOS Security Features Supervisor Password Displays the status of the supervisor password. User Password Displays the status of the user password. Set Supervisor Password Set the supervisor password through this menu. The following options are available when the Supervisor Password is set. User Access Level Set User Password Password Check Changing Boot Sequence for the Current Boot You can use this feature, for example, to tell the computer to boot from the CD drive so that you can run the Dell Diagnostics on the Drivers and Utilities media, but you want the computer to boot from the hard drive when the diagnostic tests are complete. You can also use this feature to restart your computer to a USB device such as a floppy drive, memory key, or CD-RW drive. 1. If you are booting to a USB device, connect the USB device to a USB connector. 2. Turn on (or restart) your computer. 3. When F2 = Setup, F12 = Boot Menu appears in the bottom- right corner of the screen, press <F12>. If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop. Then shut down your computer and try again. The Boot Device Menu appears, listing all available boot devices. Each device has a number next to it. 4. At the bottom of the menu, enter the number of the device that is to be used for the current boot only. For example, if you are booting to a USB memory key, highlight USB Flash Device and press <Enter>. NOTE: To boot to a USB device, the device must be bootable. To make sure your device is bootable, check the device documentation. Changing Boot Sequence for Future Boots 1. Enter system setup (see Entering System Setup). 2. Use the arrow keys to highlight the Boot Device Configuration menu option and press <Enter> to access the menu. NOTE: Write down your current boot sequence in case you want to restore it. 3. Press the up- and down-arrow keys to move through the list of devices. 4. Press plus (+) or minus (–) to change the boot priority of device. Clearing Forgotten Passwords WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Locate the 3-pin password reset jumper on the system board. NOTE: The location of the password connector may vary depending on the system. Inspiron 535s/537s Inspiron 545s Inspiron 546s 4. Remove the 2-pin jumper plug from pins 2 and 3 and fix it on pins 1 and 2. 5. Turn on the computer, wait for approximately five seconds, and then turn off the computer. If required, press and hold the power button to turn off the computer. 6. Remove the 2-pin jumper plug from pins 1 and 2 and replace it on pins 2 and 3 to enable the password feature. 7. Replace the computer cover (see Replacing the Computer Cover). 8. Connect your computer and devices to electrical outlets, and turn them on. Clearing CMOS Settings 1. Follow the procedures in Before You Begin. NOTE: The computer must be disconnected from the electrical outlet to clear the CMOS setting. 2. Remove the computer cover (see Removing the Computer Cover). 3. Reset the current CMOS settings: a. Locate the 3-pin CMOS reset jumper on the system board. b. Remove the jumper plug from the CMOS reset jumper pins 2 and 3. c. Place the jumper plug on the CMOS reset jumper pins 1 and 2 and wait approximately five seconds. d. Remove the jumper plug and replace it on the CMOS reset jumper pins 2 and 3. Inspiron 535s/537s Inspiron 545s Inspiron 546s 4. Replace the computer cover (see Replacing the Computer Cover). 5. Connect your computer and devices to electrical outlets, and turn them on. Flashing the BIOS The BIOS may require flashing when an update is available or when replacing the system board. 1. Turn on the computer. 2. Locate the BIOS update file for your computer at the Dell Support website at support.dell.com. 3. Click Download Now to download the file. 4. If the Export Compliance Disclaimer window appears, click Yes, I Accept this Agreement. The File Download window appears. 5. Click Save this program to disk, and then click OK. The Save In window appears. 6. Click the down arrow to view the Save In menu, select Desktop, and then click Save. The file downloads to your desktop. 7. Click Close when the Download Complete window appears. The file icon appears on your desktop and is titled the same as the download BIOS update file. 8. Double-click the file icon on the desktop and follow the instructions on the screen. Back to Contents Page Back to Contents Page System Board Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Removing the System Board Replacing the System Board WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. WARNING: Do not operate your equipment with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. Removing the System Board 1. Follow the procedures in Before You Begin. 2. Remove the computer cover (see Removing the Computer Cover). 3. Remove the support bracket (see Removing the Support Bracket). 4. Remove any add-in cards on the system board (see Removing PCI and PCI Express Cards). 5. Remove the optical drive (see Removing an Optical Drive). 6. Remove the processor fan and heat sink assembly (see Removing the Processor Fan and Heat Sink Assembly). 7. Remove the processor (see Removing the Processor). 8. Remove the memory modules (see Removing Memory) and document which memory module is removed from each memory socket so that the memory modules can be installed in the same location after the board is replaced. 9. Disconnect all cables from the system board. Note the routing of all cables as you remove them so that you can re-route them correctly after installing the new system board. 10. Remove the screws from the system board. 11. Lift the system board up and out. Inspiron 535s/537s 1 screws (6) 2 system board Inspiron 545s/546s 1 screws (8) 2 system board Compare the system board that you just removed with the replacement system board to ensure that they are identical. Replacing the System Board 1. Gently align the system board into the chassis and slide it towards the back of the computer. CAUTION: Ensure that the port retention springs are not damaged while replacing the sytem board. Inspiron 535s/537s 1 back of the computer 2 port retention spring Inspiron 545s/546s 1 back of the computer 2 port retention springs (3) 2. Replace the screws that secure the system board to the chassis. 3. Connect the cables that you removed from the system board. CAUTION: Ensure that the processor fan and heat sink assembly is correctly seated and secure. 4. Replace the processor (see Replacing the Processor). 5. Replace the processor fan and the heat sink assembly (see Replacing the Processor Fan and Heat Sink Assembly). 6. Replace the memory modules into the memory sockets at the same locations from which you removed them (see Replacing Memory). 7. Replace the optical drive (see Replacing an Optical Drive). 8. Replace any add-in cards on the system board (see Replacing PCI and PCI Express Cards). 9. Replace the support bracket (see Replacing the Support Bracket). 10. Replace the computer cover (see Replacing the Computer Cover). 11. Connect your computer and devices to an electrical outlet, and turn them on. Back to Contents Page Back to Contents Page Technical Overview Dell™ Inspiron™ 535s/537s/545s/546s Service Manual Inside View of Your Computer System Board Components WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at dell.com/regulatory_compliance. Inside View of Your Computer 1 power supply 2 support bracket 3 system board 4 optical drive 5 media card reader (optional) 6 primary hard drive System Board Components Inspiron 535s/537s 1 12 V power connector (ATX12V1) 2 processor socket 3 processor fan connector 4 memory module connector (FAN_CPU) (DIMM1) 5 memory module connector (DIMM2) 6 password reset jumper (CLR_PSW)

7 main power connector (ATX1_POWER1) 8 SATA connector (SATA_1)

9 SATA connector (SATA_0) 10 front panel connector (FRONTPANEL) 11 CMOS reset jumper (CLR_CMOS) 12 front panel USB connector (F_USB2)

13 front panel USB connector (F_USB1) 14 front panel audio (FP_AUDIO)

15 PCI card slot (PCI_2) 16 PCI card slot (PCI_1) 17 battery socket (BATTERY) 18 PCI-Express x1 card slot (PCIEX1)

19 PCI-Express x16 card slot (PCIEX16) Inspiron 545s 20 chassis fan connector (FAN_SYS)

1 12 V power connector (PWR2) 2 processor socket

3 processor fan connector (CPU_FAN) 5 memory module connector (DIMM2) 7 memory module connector (DIMM4) 4 memory module connector (DIMM1) 6 memory module connector (DIMM3) 8 main power connector (PWR1)

9 battery socket (BAT) 10 CMOS reset jumper (CLR_CMOS)

11 password reset jumper (PSWD) 12 SATA connector (SATA_1)

13 SATA connector (SATA_4) 14 front panel connector (FP1)

15 front panel USB connector (F_USB1) 17 front panel USB connector (F_USB2) 16 SATA connector (SATA_5) 18 front panel USB connector (F_USB3)

19 front panel audio (F_AUDIO) 20 PCI card slot (PCI2) 21 PCI card slot (PCI1) 22 SATA connector (SATA_0)

23 PCI-Express x1 card slot (PCI-E_1X) 25 chassis fan connector (SYS_FAN1) 24 PCI-Express x16 card slot (PCI-E1_16X)

Inspiron 546s 1 12 V power connector (PWR2) 2 processor socket

3 processor fan connector (CPU_FAN1) 5 memory module connector (DIMM3) 7 memory module connector (DIMM1) 4 memory module connector (DIMM4) 6 memory module connector (DIMM2) 8 password reset jumper (PSWD1)

9 main power connector (PWR1) 10 battery socket (BAT1) 11 CMOS reset jumper (CLR_CMOS1) 12 front panel connector (FP1) 13 SATA connector (SATA_2) 14 SATA connector (SATA_1) 15 SATA connector (SATA_0) 16 SATA connector (SATA_3)

17 front panel USB connector (F_USB1) 19 front panel USB connector (F_USB3) 18 front panel USB connector (F_USB2) 20 front panel audio (F_AUDIO1)

21 PCI card slot (PCI2) 22 PCI card slot (PCI1)

23 PCI-Express x16 card slot (PCI-E_16X_1) 25 chassis fan connector (SYS_FAN1)Back to Contents Page 24 PCI-Express x1 card slot (PCI-E_1X_1)


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