Riser cards
This section provides cable routing information for riser cards.
x16/x16 PCIe riser card 1: Riser card 1 cable connections
x16/x8/x8 PCIe riser card 1: Riser card 1 cable connections
x8/x8 PCIe riser card 3: Riser card 3 (x8/x8 PCIe) cable connection
x16/x16 PCIe riser card 3: Riser card 3 (x16/x16 PCIe) cable connection
Riser 3 power and sideband connection: Riser card 3 power and sideband connection
The riser card types vary by server model. For detailed information, see Rear view.
Riser card 1 cable connections
![Cable routing for riser card 1](sr655_riser1ab_cable-450.png)
Cable | From | To |
---|---|---|
1 Signal cable | PCIe connector 5 on the riser card | PCIe connector 5 on the system board |
2 Signal cable | PCIe connector 6 on the riser card | PCIe connector 6 on the system board |
x16/x16 or x16/x8/x8 PCIe riser card 1 is not supported if three 8x 2.5-inch front drive backplanes are connected to onboard PCIe connectors.
Riser card 3 (x8/x8 PCIe) cable connection
![Cable routing for riser card 3 (x8/x8 PCIe)](sr655_riser3b_pciecable-450.png)
Cable | From | To |
---|---|---|
1 Signal cable | PCIe connector 2 on the riser card | PCIe connector 2 on the system board |
PCIe connector 3 on the riser card | PCIe connector 3 on the system board |
x8/x8 PCIe riser card 3 is not supported if the server has a 12 x 3.5-inch AnyBay backplane or 8 x 2.5-inch NVMe backplane installed.
Riser card 3 (x16/x16 PCIe) cable connection
![Cable routing for riser card 3 (x16/x16 PCIe)](sr655_riser3c_pciecable-450.png)
Cable | From | To |
---|---|---|
1 Signal cable | PCIe connector 2 on the riser card | PCIe connector 2 on the system board |
PCIe connector 3 on the riser card | PCIe connector 3 on the system board | |
2 Signal cable | PCIe connector 7-8 on the riser card | PCIe connectors 7 and 8 on the system board |
PCIe connector 4 on the riser card | PCIe connector 4 on the system board |
x16/x16 PCIe riser card 3 is not supported if the server has a 12 x 3.5-inch AnyBay backplane, 12 x 3.5-inch SAS/SATA front backplane (on board), 8 x 3.5-inch SAS/SATA front backplane (on board), 8 x 2.5-inch NVMe backplane, or M.2 drive installed.
Riser card 3 power and sideband connection
![Riser card 3 power and sideband connection](sr655_riser3_pwrcable-450.png)
Cable | From | To |
---|---|---|
1 Signal cable | Power connector on the riser card | Riser 3 power connector on the system board |
2 Signal cable | Sideband connector on the riser card | Riser 3 sideband on the system board |