Riser card 3 (x16/x16 Gen 4 PCIe) signal cable connection
Figure 284. Signal cable connections for the x16/x16 Gen 4 PCIe riser card 3
From To
1  MCIO 1 on the riser card 1  Onboard: PCIe 9
2  MCIO 2 on the riser card 2  Onboard: PCIe 8
3  MCIO 3 on the riser card 3  Onboard: PCIe 6
4  MCIO 4 on the riser card 4  Onboard: PCIe 10, 11
Chapter 6. Internal cable routing 303