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What are the main connectors on the GIGABYTE AI TOP CXL R5X4 and what are their functions?
The GIGABYTE AI TOP CXL R5X4 features the following primary connectors and indicators:
a. EXT_12V (2×4 12V Power Connector): This connector is used to provide power to the card. Before turning on your computer, you must connect the power supply cable to this connector.
b. EXT_LED (Power Connector Indicator LED): This LED serves as a status indicator for the power connection. The LED will be on if the EXT_12V power connector is not connected.
The card also includes four DDR5 DIMM sockets labeled DDR5_A0, DDR5_A1, DDR5_B0, and DDR5_B1, along with an M_BIOS header and a Microchip PM8712 Controller.
What are the product specifications for the GIGABYTE AI TOP CXL R5X4?
| Interface | PCI Express x16 |
| PCIe Generation | CXL 2.0/1.1 |
| Memory Interface | Support for DDR5 ECC Registered memory modules (RDIMM) 4 x DDR5 DIMM sockets, supporting up to 512 GB of memory (up to 128 GB per DIMM) |
| PCB Size | 12.0cm x 25.4cm |
| Supported Motherboards | TRX50 AI TOP W790 AI TOP |
Are there any special considerations for using the GIGABYTE AI TOP CXL R5X4 with a TRX50 AI TOP motherboard?
Yes, please note that the PCIEX16_4 slot on the TRX50 AI TOP motherboard does not support the CXL specification.
What is the recommended memory installation configuration for the GIGABYTE AI TOP CXL R5X4?
The following table shows the recommended memory slot configuration based on the number of memory modules you plan to install.
| DDR5_A0 | DDR5_A1 | DDR5_B0 | DDR5_B1 | |
|---|---|---|---|---|
| 1 Module | ✓ | – – | – – | – – |
| 2 Modules | ✓ | ✓ | – – | – – |
| 4 Modules | ✓ | ✓ | ✓ | ✓ |
(“✓”=Installed, “- -“=No Memory)
Which DDR5 memory modules are supported by the GIGABYTE AI TOP CXL R5X4?
The following is the DDR QVL (Qualified Vendors List) for the GIGABYTE AI TOP CXL R5X4.
| Module Supplier | Capacity | Rank | Module P/N | Chip Brand | Timing | Voltage | Memory Socket Support | |
|---|---|---|---|---|---|---|---|---|
| 1, 2 | 4 | |||||||
| Kingston FURY | 128 GB | 2Rx4 | KSM64R52BD4-128MB | Micron B | 52-52-52-103 | 1.1v | ✓ | ✓ |
| Micron | 64 GB | 2Rx4 | MTC40F2046S1RC64BD2R | Micron | CL52 | 1.1v | ✓ | ✓ |
| Micron | 128 GB | 2Rx4 | MTC40F2047S1RC64BB1R | Micron | CL52 | 1.1v | ✓ | ✓ |
| Micron | 64 GB | 2Rx4 | MTC40F2046S1RC56BD1MMCC | Micron D | 46-45-45 | 1.1v | ✓ | ✓ |
| Micron | 64 GB | 2Rx4 | MTC40F2046S1RC56BD1MLCC | Micron D | 46-45-45 | 1.1v | ✓ | ✓ |
| Micron | 96 GB | 2Rx4 | MTC40F204WS1RC56BB1 | Micron | CL46 | 1.1v | ✓ | ✓ |
| Micron | 128 GB | 2Rx4 | MTC40F2047S1RC56BB1 | Micron | CL46 | 1.1v | ✓ | ✓ |
| Samsung | 128 GB | 2Rx4 | M321RAJA0MB0-CWMNX | Samsung | 45-45-45-90 | 1.1v | ✓ | ✓ |
| V-COLOR | 64 GB | 2Rx4 | TRA564G60D432Q | Hynix M | 32-38-38-96 | 1.25v | ✓ | ✓ |
| V-COLOR | 96 GB | 2Rx4 | TRA596G60D432Q | Hynix M | 32-38-38-96 | 1.25v | ✓ | ✓ |
| V-COLOR | 64 GB | 2Rx4 | TR564G56D4460 | Hynix M | 46-45-45-90 | 1.1v | ✓ | ✓ |
| V-COLOR | 96 GB | 2Rx4 | TR596G56D4460 | Hynix M | 46-45-45-90 | 1.1v | ✓ | ✓ |
| V-COLOR | 64 GB | 2Rx4 | TR564G48D440Q | Hynix M | 40-39-39-77 | 1.1v | ✓ | ✓ |
| V-COLOR | 96 GB | 2Rx4 | TR596G48D440Q | Hynix M | 40-39-39-77 | 1.1v | ✓ | ✓ |
QVL Version: April 22, 2025
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