Riser card 3 (x8/x8 Gen 5 PCIe) signal cable connection
Figure 285. Cable routing when two processors installed Figure 286. Cable routing when one processor installed
From To From To
1  MCIO 1 on the riser card 1  Onboard: PCIe 6 1  MCIO 1 on the riser card 1  Onboard: PCIe 9
2  MCIO 3 on the riser card 2  Onboard: PCIe 10, 11 2  MCIO 3 on the riser card 2  Onboard: PCIe 10, 11
304 ThinkSystem SR665 V3 User Guide