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Riser Cards and PCIe Slots
Riser Module
Figure 2-20 shows riser card 1 supported by riser module 1. Figure 2-21 shows riser card 2 supported by riser module 2.
Figure 2-21 Riser card 2
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- Riser cards 1 and 2 must be installed, and the four Slimline cables of riser card 1 must be connected. Otherwise, the NPU is unavailable.
- Riser card 1 supports only slots 1 and 2. Slot 3 corresponds to the three PCIe 4.0 x8 Slimline connectors on riser card 1.
- Riser card 2 supports only slots 4 and 5. Slot 6 corresponds to the three PCIe 4.0 x8 Slimline connectors on riser card 2.
PCIe Slots
Figure 2-22 shows the PCIe slot layout.
Table 2-12 describes specifications of the PCIe slots.
Table 2-12 PCIe slot description
PCIe Slot |
CPU |
PCIe Standards |
Connector Width |
Bus Width |
Port Number in the BIOS |
Root Port (B/D/F) |
Device (B/D/F) |
Slot Size |
|---|---|---|---|---|---|---|---|---|
Slot 1 |
CPU 4 |
PCIe 4.0 |
x16 |
x8 lane |
Port76 |
C0/10/0 |
C3/00/0 |
Full-height full-length (FHFL) |
Slot 2 |
CPU 2 |
PCIe 4.0 |
x16 |
x8 lane |
Port36 |
40/10/0 |
43/00/0 |
Full-height half-length (FHHL) |
Slot 4 |
CPU 1 |
PCIe 4.0 |
x16 |
x8 lane |
N/A |
N/A |
N/A |
Half-height and half-length (HHHL) |
Slot 5 |
CPU 2 |
PCIe 4.0 |
x16 |
N/A |
N/A |
N/A |
N/A |
HHHL |
NOTE:
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