4-slot switched GPU distribution board configuration

Use the section to understand the cable routing for the PCIe riser 1 for the server configuration with 4-slot switched GPU distribution board.

x16/x16 PCIe riser 1 with two MCIO connectors — configurations 6 and 24​

Figure 1. PCIe riser 1 cable routing

Cable	From	To
1	PCIe riser 1: MCIO connectors A and B	GPU distribution board (right side): MCIO connector C

x16/x16 PCIe riser 1 with three MCIO connectors — configurations 38, 39, 40, and 41​

Figure 2. PCIe riser 1 cable routing

Cable	From	To
1	PCIe riser 1: MCIO connectors A and B	GPU distribution board (right side): MCIO connector C
2	PCIe riser 1: MCIO connector C	GPU distribution board (right side): MCIO connector D