Dell PowerEdge R760 Installation and Service Manual

Removing the full length expansion card risers

Follow the safety guidelines listed in the Safety instructions.
Follow the procedure listed in the Before working inside your system.
Remove the GPU air shroud top cover.
If applicable, disconnect the cables from the expansion card or system board.
NOTE: If BOSS-N1 module is installed, be sure to disconnect the BOSS-N1 power cable and signal cable before removing the Riser 1 cage.

To remove full length expansion card riser:
1. Loosen the captive screws on the riser.
2. Press the blue release tab and holding the edges, lift the expansion card riser from the riser connector on the system board.
3. Disconnect the GPU power cable and signal cable from the system board.
  NOTE:The numbers on the image do not depict the exact steps. The numbers are for representation of sequence.
Figure 1. Removing the expansion card riser (Riser 1)
Figure 2. Removing the expansion card riser (Riser 4)
If the risers are not going to be replaced, install riser blanks and tighten the captive screws.
NOTE:You must install a filler bracket over an empty expansion card slot to maintain Federal Communications Commission (FCC) certification of the system. The brackets also keep dust and dirt out of the system and aid in proper cooling and airflow inside the system.
Figure 3. Installing the Riser 1 blank
Figure 4. Installing the Riser 4 blank