Lenovo ThinkSystem SR665 Maintenance Manual page 70

Riser card 3 power and sideband connection
Note: The power and sideband connections for x8/x8 PCIe riser card 3 and x16/x16 PCIe riser card 3 are
the same.
Figure 15. Riser card 3 power and sideband connection
From
Power connector on the riser card
1
Sideband connector on the riser card
2
ThinkSystem SR665 Maintenance Manual
60
To
Riser 3 power connector on the system board
Riser 3 sideband on the system board