PCIe riser 2 cable routing

Follow the instructions in this section to learn how to do cable routing for the PCIe riser 2.

Note

When routing the cables, ensure that all cables are routed appropriately through the cable guides and cable clips.
A label on each signal cable indicates the connection source and destination. This information is in the format RY-X and P Z. Where Y indicates the PCIe riser number, X indicates the connector on the riser card, and Z indicates the connector on the system board assembly.

Choose the routing plan according to the PCIe riser type.

See Three-slot PCIe riser 2 cable routing for the following PCIe risers:
- x16/x8/x8 PCIe G4 Riser 2/A/B/C HHHL (installed in the riser 2)
- x16/x8/x8 PCIe G5 Riser 2/A/B/C HHHL (installed in the riser 2)
See Three-slot PCIe riser 2 (with serial port module) cable routing for the following PCIe risers:
- x16/x8/Serial PCIe G4 Riser 2/C HHHL (installed in the riser 2)
- x16/x8/Serial PCIe G5 Riser 2/C HHHL (installed in the riser 2)

Three-slot PCIe riser 2 cable routing

The following illustration shows cable routing for the three-slot PCIe riser 2.

Figure 1. Cable routing for the three-slot PCIe riser 2

Cable	From	To	Cable length	Label
`1`	PCIe riser 2: R1 connector	System board assembly: P 6 connector	500 mm	R2-1
`1`	PCIe riser 2: R1 connector	System board assembly: P 6 connector	500 mm	P 6
`2`	PCIe riser 2: R2 connector	System board assembly: P 15 connector	360 mm	R2-2
`2`	PCIe riser 2: R2 connector	System board assembly: P 15 connector	360 mm	P 15
`3`	PCIe riser 2: R3 connector	System board assembly: P 8 connector	440 mm	R2-3
`3`	PCIe riser 2: R3 connector	System board assembly: P 8 connector	440 mm	P 8
`4`	PCIe riser 2: R4 connector	System board assembly: P 7 connector	360 mm	R2-4
`4`	PCIe riser 2: R4 connector	System board assembly: P 7 connector	360 mm	P 7

The following illustration shows cable routing for the three-slot PCIe riser 2 (with serial port module).

Figure 2. Cable routing for the three-slot PCIe riser 2 (with serial port module)

Cable	From	To	Cable length	Label
`1`	PCIe riser 2: R1 connector	System board assembly: P 6 connector	500 mm	R2-1
`1`	PCIe riser 2: R1 connector	System board assembly: P 6 connector	500 mm	P 6
`2`	PCIe riser 2: R3 connector	System board assembly: P 8 connector	440 mm	R2-3
`2`	PCIe riser 2: R3 connector	System board assembly: P 8 connector	440 mm	P 8
`3`	PCIe riser 2: R4 connector	System board assembly: P 7 connector	360 mm	R2-4
`3`	PCIe riser 2: R4 connector	System board assembly: P 7 connector	360 mm	P 7

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