This video will demonstrate the removal procedure of a PCI Riser for the PowerEdge R720XD.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product. NOTE: The expansion-card riser 1 can be used only when both the processors are installed.
Removing An Expansion Card From The Expansion-Card Riser 1: Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet and peripherals. Open the system. Disconnect any cables connected to the expansion card. Remove the expansion-card riser. Press tab A and rotate the latch clockwise. Press tab B and rotate the latch down. Remove the expansion card from the expansion-card riser. If you are removing the card permanently, install a metal filler bracket over the empty expansion slot opening and close the expansion-card latch. Reinstall the expansion-card riser. Close the system. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.
Installing Expansion-Card Risers: If applicable, reinstall the expansion card(s) into the expansion card riser. Align the expansion-card riser with the connector and the riser guide pin on the system board. Lower the expansion-card riser into place until the expansion-card riser is fully seated in the connector. Close the system. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals. Install any device drivers required for the card as described in the documentation for the card.