Dell PowerEdge R760 Installation And Service Manual page 257

2. To install the full length expansion card risers:
a. For Riser 4 connect the GPU power cable to the connector PWR2_B and signal cable to the connector PSU2_SIG on the
system board.
b. For Riser 1 connect the GPU power cable to the connector PWR1_B and signal cable to the connector PSU1_SIG on the
system board.
NOTE: Temporarily unplug and plug the VGA cable for making space to connect Riser 1 GPU power cable to system
board.
c. Holding the edges or the touch points, align the holes on the expansion card riser with the guides on the system board
and GPU air shroud.
d. Lower the expansion card riser into place and press the touch points until the expansion card riser connector is fully
seated on the system board connector.
e. Tighten the captive screws on the risers and system if any.
NOTE: Route the cables properly through the riser clip.
NOTE: The numbers on the image do not depict the exact steps. The numbers are for representation of sequence.
Figure 198. Installing the expansion card riser (Riser 4)
Installing and removing system components 257