Riser card 3 power and sideband connection (Gen 4/Gen 5)
The power and sideband connections for x8/x8 PCIe riser card 3 and x16/x16 PCIe riser card 3 are the same.
Figure 281. Riser card 3 power and sideband connection
From To
1 Power connector on the riser card 1 Riser 3 power connector on the system board
assembly
2 Sideband connector on the riser card
2 Riser 3 sideband connector on the system board
assembly
Chapter 6. Internal cable routing 301