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Atlas 800 Training Server User Guide (Model 9010) 17

Riser Modules and PCIe Slots (Full Configuration of NPUs)

Riser Modules and PCIe Slots (Full Configuration of NPUs)

Riser Module

Figure 2-14 shows the riser card supported by riser module 1. Figure 2-15 shows the riser card supported by riser module 2.

Figure 2-14 Riser card 1
Figure 2-15 Riser card 2

PCIe Slots

Figure 2-16 shows the PCIe slot layout.

Figure 2-16 PCIe slots

Table 2-13 lists the specifications of the PCIe slots.

Table 2-13 PCIe slot description

PCIe Slot

CPU Connected

PCIe Standard

Connector Width

Bus Width

Port No. on the BIOS

Root Port (B/D/F)

Device (B/D/F)

Slot Size

Slot 1

CPU 1

PCIe 3.0

x16

x16

Port 2A

3A:0C.0

3F:00.0

Full-height full-length (FHFL)

Slot 2

CPU 1

PCIe 3.0

x16

x8

Port 3A

5D:0C.0

63:00.0

FHFL

Slot 3

CPU 1

PCIe 3.0

x16

x8

Port 3A

5D:0D.0

63:00.0

FHFL

Slot 4

CPU 2

PCIe 3.0

x16

x16

Port 3A

D7:08.0

DC:00.0

Half-height half-length (HHHL)

Slot 5

CPU 2

PCIe 3.0

x16

x8

Port 2A

AE:09.0

B5:00.0

HHHL

Slot 6

CPU 2

PCIe 3.0

x16

x8

Port 2A

AE:08.0

B3:00.0

HHHL
NOTE:
  • A PCIe slot that supports an FHFL PCIe card is backward compatible with an FHHL or HHHL PCIe card. A PCIe slot that supports an FHHL PCIe card is backward compatible with an HHHL 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 the supported PCIe cards, use the Computing Product Compatibility Checker. For PCIe cards not listed by the Computing Product Compatibility Checker, contact the local Huawei sales personnel to submit a compatibility test requirement.
  • B/D/F indicates the 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: The device is not fully configured with PCIe devices; the PCIe cards in full configuration are of different models or installed in different slots; a PCIe card with a PCI bridge is configured.
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Update Date：2024-04-03
Document ID：EDOC1100149967
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