Direct GPU distribution board configuration
Use the section to understand the 2.5-inch drive backplane cable routing for the server configuration with direct GPU distribution board.
Choose the routing plan depending on if the RAID/HBA adapter is installed in the system or not.
Without RAID/HBA adapter
Note
This configuration supports eight U.2/U.3 drives.
Figure 1. 2.5-inch drive backplane cable routing
| Cable | From | To |
|---|---|---|
| 1 | Backplane: NVMe 0-1 and NVMe 2-3 | System board assembly: PCIe connector 4 |
| 2 | Backplane: Power connector | System board assembly: Backplane power connector |
| 3 | Backplane: NVMe 4-5 and NVMe 6-7 | System board assembly: PCIe connector 8 |
With RAID/HBA adapter
Note
This configuration supports eight SAS/SATA/NVMe drives.
Figure 2. 2.5-inch drive backplane cable routing
| Cable | From | To |
|---|---|---|
| 1 | Backplane: NVMe 0-1 and NVMe 2-3 | System board assembly: PCIe connector 4 |
| 2 | Backplane: Power connector | System board assembly: Backplane power connector |
| 3 | Backplane: SAS/SATA | 8i RAID/HBA adapter installed on the PCIe riser 2:
|
| 4 | Backplane: NVMe 4-5 and NVMe 6-7 | System board assembly: PCIe connector 8 |
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