Dell EMC PowerEdge R7525 Installation And Service Manual page 122

Figure 98. Installing the expansion card riser (Riser 3A)
2. To install the full length expansion card Riser 4A:
a. Holding the edges or the touch points, align the holes on the expansion card riser with the guides on the system board.
b. 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.
c. Tighten the captive screw on the riser.
d. Connect the GPU cable to the system board.
Figure 99. Installing the expansion card riser (Riser 4A)
122 Installing and removing system components