Figure 2-20 shows riser card 1 supported by PRM 1. Figure 2-21 shows riser card 2 supported by PRM 2.
Figure 2-20 Riser card 1![]()
Figure 2-21 Riser card 2![]()
Figure 2-22 shows the PCIe slots on the rear panel of the server.
Figure 2-22 PCIe slots![]()
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- The silkscreen Slot3 on the panel corresponds to the three PCIe 4.0 x8 Slimline connectors on riser card 1.
- The silkscreen Slot6 on the panel corresponds to the three PCIe 4.0 x8 Slimline connectors on riser card 2.
Table 2-12 describes the PCIe slots.
Table 2-12 PCIe slot descriptionPCIe Slot
|
CPU
|
PCIe Standards
|
Connector Width
|
Bus Width
|
Port Number in the BIOS
|
Root Port (B/D/F)
|
Device (B/D/F)
|
Slot Size
|
|---|
Slot1
|
CPU4
|
PCIe 4.0
|
x16
|
2-slot PRM: x8
|
Port76
|
C0/10/0
|
C3/00/0
|
Full-height full-length (FHFL)
|
Slot2
|
CPU2
|
PCIe 4.0
|
x16
|
2-slot PRM: x8
|
Port36
|
40/10/0
|
43/00/0
|
Full-height half-length (FHHL)
|
Slot3
|
CPU1
|
PCIe 4.0
|
x24
|
2-slot PRM: x16 + x8
|
Port0, Port8
|
00/00/0, 00/08/0
|
01/00/0, 02/00/0
|
FHHL
|
Slot4
|
CPU1
|
PCIe 4.0
|
x16
|
2-slot PRM: x8
|
NA
|
NA
|
NA
|
Half-height and half-length (HHHL)
|
Slot5
|
CPU2
|
PCIe 4.0
|
x16
|
2-slot PRM: N/A
|
NA
|
NA
|
NA
|
HHHL
|
Slot6
|
CPU2
|
PCIe 4.0
|
x24
|
2-slot PRM: x16 + x8
|
Port20, Port28
|
00/00/0, 00/08/0
|
41/00/0, 42/00/0
|
HHHL
|
NOTE: - A PCIe slot that supports a full-height full-length PCIe card is backward compatible with a full-height half-length or half-height half-length PCIe card. A PCIe slot that supports a full-height half-length PCIe card is backward compatible with a half-height half-length PCIe card.
- A PCIe slot that supports a PCIe x16 card is backward compatible with a PCIe x8, x4, or x2 card. A PCIe slot that supports a PCIe x8 card is backward compatible with a PCIe x4, or x2 card.
- All slots support PCIe cards of up to 75 W. The power of a PCIe card varies depending on its model. For details about supported PCIe cards, use the Computing Product Compatibility Checker. For PCIe cards not listed by the Intelligent Computing Compatibility Checker, contact the local Huawei sales personnel to submit a compatibility test requirement.
- B/D/F indicates Bus/Device/Function Number.
- ROOT PORT (B/D/F) indicates the B/D/F of a CPU internal PCIe root port. Device (B/D/F) indicates the B/D/F (displayed on the OS) of an onboard or external PCIe port.
- This table lists the default B/D/F information. The values may be different if 1) The server is not fully configured with PCIe devices; 2) The PCIe cards in full configuration are of a different model or installed in different slots; 3) A PCIe card with a PCI bridge is configured.
- Slots 3 and 6 each support three PCIe 4.0 x8 Slimline connectors. Three Slimline connectors, two of which form PCIe 4.0 x16, and the other one forms PCIe 4.0 x16 with the PCIe 4.0 x8 LOM port on the CPU mainboard to connect to the NPU.
|
