Riser cards
Use this section to understand the cable routing for riser cards.
The server supports up to three riser cards: riser card 1, riser card 2, and riser card 3. Among which, only riser card 3 needs cable connections:
The riser card types vary by server model. For detailed information, see Rear view.
Riser card 3 power and sideband connection
Note
The power and sideband connections for x8/x8 PCIe riser card 3 and x16/x16 PCIe riser card 3 are the same.
Figure 1. Riser card 3 power and sideband connection
| From | To |
|---|---|
| 1 Power connector on the riser card | Riser 3 power connector on the system board |
| 2 Sideband connector on the riser card | Riser 3 sideband on the system board |
Riser card 3 (x8/x8 or x16/x16 PCIe) cable connection
Figure 2. Cable routing for riser card 3 (x8/x8 or x16/x16 PCIe)
| From | To |
|---|---|
| 1 MCIO 1 on the riser card | PCIe connector 1-2 on the system board |
| 2 MCIO 2 on the riser card | PCIe connectors 7 on the system board |
| 3 MCIO 3 on the riser card | PCIe connector 8 on the system board |
| 4 MCIO 4 on the riser card | PCIe connector 3 on the system board |
Note
3 and 4 are for x16/x16 PCIe riser card 3 only.
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