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PCIe expansion node

Use this section to understand how to route cables for a PCIe expansion node.

Following are the cables that come with a PCIe expansion node:

  • Front PCIe riser assembly

    Figure 1. Front riser assembly cables
    Front riser assembly cables
    Table 1. Front riser assembly cables
    1 Riser miscellaneous cable for the front riser assembly3 PCIe#4-B cable
    2 Auxiliary power cable for the PCIe adapter in the front riser assembly4 PCIe#3-A cable

  • Rear riser assembly

    Figure 2. Rear riser assembly cables
    Rear riser assembly cables
    Table 2. Rear riser assembly cables
    1 PCIe#2-B cable3 Riser miscellaneous cable for the rear riser assembly
    2 PCIe#1-A cable4 Auxiliary power cable for the PCIe adapter in the rear riser assembly
Note
Make sure the following conditions are met before installing the rear riser cable cover.

  1. If the PCIe#2-B cable is connected to the rear riser assembly, make sure it is routed under the PCIe#1-A cable through the gap between the two front riser power connectors.

  2. If the PCIe#1-A cable is connected to the rear riser assembly, make sure it is routed above the PCIe#2-B cable through the gap between the two front riser power connectors.

  3. When both riser assemblies are installed, make sure the front riser auxiliary power cable is looped back into the gap between the two front riser power connectors, and routed above the PCIe#2-B cable.
    Figure 3. Routing PCIe#1-A, PCIe#2-B and the front riser auxiliary power cable
    Routing PCIe#1-A, PCIe#2-B and the front riser auxiliary power cable