Riser card 3 power and sideband connection
The power and sideband connections for x8/x8 PCIe riser card 3 and x16/x16 PCIe riser card 3 are the same.
Figure 18. Riser card 3 power and sideband connection
From To
1  Power connector on the riser card Riser 3 power connector on the system board
2  Sideband connector on the riser card
Riser 3 sideband on the system board
Chapter 3. Internal cable routing 75