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PCIe adapter cable routing

Use this information to route the cables for the PCIe adapters.

Note
SC750 V4 supports three PCIe configurations: standalone, socket direct, and shared I/O. Check which configuration is supported by the PCIe adapter installed in the node before working on cable routing.

Standalone configuration cable routing​

Figure 1. Standalone configuration cable routing

Table 1. Standalone configuration cable routing
FromTo
1 Cabled riser on the riser cage in slot 21 PCIe riser 2 PCIe x16 connector on system board

Socket direct configuration cable routing​

Figure 2. Socket direct configuration cable routing

Table 2. Socket direct configuration cable routing
FromTo
1 Cabled riser on the riser cage in slot 21 PCIe riser 2 PCIe x16 connector on system board
2 PCIe adapter in slot 22 PCIe riser 1 PCIe x16 connector on system board

Shared I/O configuration cable routing​

Attention

  • Shared I/O configuration requires specific nodes power-on sequence. When powering on the system, power on Node B first; then, power on Node A.

  • In shared I/O configuration, when the Node B performs virtual reseat, Node A’s XCC web GUI will show the warning message FQXSFIO0021J to indicate that PCIe error recovery has occurred and the adapter may not operate correctly. To solve this issue, restart Node A. For additional user actions, see Event Message: FQXSFIO0021J.

Note
Figure 3. Shared I/O configuration cable routing

Table 3. Shared I/O configuration cable routing
FromTo
1 PCIe adapter in slot 1 in Node B1 PCIe riser 1 PCIe x16 connector on system board in Node A