4-slot switched GPU distribution board configuration

Use the section to understand the cable routing for the PCIe riser 2 for the server configuration with 4-slot switched GPU distribution board.

x16/x8 PCIe riser 2 with E1.S drive — configurations 3, 4, and 36​

Figure 1. PCIe riser 2 cable routing

Cable	From	To
1	PCIe riser 2: MCIO connector A	System board assembly: PCIe connector 8
	Backplane: EDSFF 4-5

x16/x8 PCIe riser 2 with E3.S drive — configurations 22, 23, and 37​

Figure 2. PCIe riser 2 cable routing

Cable	From	To
1	PCIe riser 2: MCIO connector A	System board assembly: PCIe connector 8
	Backplane: EDSFF 2-3

x16/x16 PCIe riser 2 with two MCIO connectors — configurations 6, 24​

Figure 3. PCIe riser 2 cable routing

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

x16/x16 PCIe riser 2 with three MCIO connectors — configurations 38, 39, 40, and 41​

Figure 4. PCIe riser 2 cable routing

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