Dell PowerEdge XE9785 Installation and Service Manual

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Expansion Card Specifications

The PowerEdge XE9785 system supports the following:

  • Up to 12 x 75 W Gen5 x16 FHHL cards (PCIe) installed on the PCIe Switch Base Board (PSBB) for MI355X GPU configuration.
  • Up to 4 x 150 W Gen5 x16 FHHL cards (PCIe) installed on the PCIe Switch Retimer Base Board (PSRBB) for B300 GPU configuration.
Table 1. Expansion Card Slots - MI355XThis table offers information about the expansion card slots supported on the system.
Platform Location Processor Connection PCIe Slot Height PCIe Slot Length Bandwidth
CPU0 - PCIe SW1 CPU0 - PCIe SW2 CPU1 - PCIe SW3 CPU1 - PCIe SW4
PSBB-MI355X OCP Slot 1 Processor 2 N/A Half Length N/A N/A N/A x16
PCIe Slot 2 Processor 2 Full Height Half Length N/A N/A N/A x16
PCIe Slot 3 Processor 2 Full Height Half Length N/A N/A N/A x16
PCIe Slot 4 Processor 2 Full Height Half Length N/A N/A N/A x16
PCIe Slot 5 Processor 2 Full Height Half Length N/A N/A x16 N/A
PCIe Slot 6 Processor 2 Full Height Half Length N/A N/A x16 N/A
PCIe Slot 7 Processor 2 Full Height Half Length N/A N/A x16 N/A
PCIe Slot 8 Processor 1 Full Height Half Length N/A x16 N/A N/A
PCIe Slot 9 Processor 1 Full Height Half Length N/A x16 N/A N/A
PCIe Slot 10 Processor 1 Full Height Half Length N/A x16 N/A N/A
PCIe Slot 11 Processor 1 Full Height Half Length x16 N/A N/A N/A
PCIe Slot 12 Processor 1 Full Height Half Length x16 N/A N/A N/A
PCIe Slot 13 Processor 1 Full Height Half Length x16 N/A N/A N/A
GPU Slot 21 Processor 2 N/A Full Length N/A N/A N/A x16
GPU Slot 22 Processor 2 N/A Half Length N/A N/A x16 N/A
GPU Slot 23 Processor 1 N/A Half Length N/A x16 N/A N/A
GPU Slot 24 Processor 1 N/A Full Length x16 N/A N/A N/A
GPU Slot 25 Processor 2 N/A Full Length N/A N/A N/A x16
GPU Slot 26 Processor 2 N/A Full Length N/A N/A x16 N/A
GPU Slot 27 Processor 1 N/A Full Length N/A x16 N/A N/A
GPU Slot 28 Processor 1 N/A Half Length x16 N/A N/A N/A
Table 2. Expansion Card Slots - B300This table offers information about the expansion card slots supported on the system.
Platform Location Processor Connection PCIe Slot Height PCIe Slot Length Bandwidth
CPU0 - PCIe SW1 CPU1 - PCIe SW2
PSRBB-B300 OCP Slot 1 Processor 2 Full Height Half Length N/A x16
Slot 3 Processor 2 Full Height Half Length N/A x16
Slot 6 Processor 2 Full Height Half Length N/A x16
Slot 9 Processor 1 Full Height Half Length x16 N/A
Slot 12 Processor 1 Full Height Half Length x16 N/A

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