Dell Precision 7920 Rack Owner's Manual page 56

b Press the release tab, and holding the riser by its edges, lift the riser from the riser connector on the system board.
Figure 21. Removing expansion card riser 2A
2 Remove the expansion card riser.
Installing expansion card riser 2
Step
To install expansion card riser 2A:
a Align the screw and tab on the riser with the screw hole and slot on the system.
b Lower the riser into the system until the riser connector engages with the connector on the system board.
c Using Phillips #2 screwdriver, tighten the screws to secure the riser to the system.
Next steps
1 If removed, install expansion cards into the riser and connect any cable disconnected.
2 If applicable, install the air shroud.
NOTE: If applicable, open the PCIe card holder latch on the air shroud to install the full length card.
3 Install any device drivers required for the card as described in the documentation for the card.
Removing expansion card riser 3
Prerequisites
1 If applicable, remove the air shroud.
NOTE: If applicable, close the PCIe card holder latch on the air shroud to release the full length card.
2 If installed, remove expansion cards installed on the riser.
3 Disconnect any cables connected to the riser card.
Steps
1 Using Phillips #2 screwdriver, loosen the screw that secures the riser to the system.
2 Press the release tab, and holding the riser by its edges, lift the riser from the riser connector on the system board.
56 Removing and installing components