Dell PowerEdge R760 Installation And Service Manual page 268

Figure 212. Installing the serial COM port
3. Connect the serial COM port cable to the rear I/O board.
4. Holding the edges or the touch points, align the holes on the expansion card riser with the guides on the system board.
5. 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.
6. Tighten the captive screws on the system.
Figure 213. Connecting the serial COM port
Next steps
1. Install the air shroud or
2. If required, install PCIe card to slot 7.
3. Follow the procedure listed in
268 Installing and removing system components
install the GPU air shroud.
After working inside your system.