Installing The Side-I/O Board - Dell OptiPlex 7780 All-In-One Service Manual

Installing the side-I/O board

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image provides a visual representation of the side-I/O board installation procedure.
Steps
1. Align the screw holes on the side-I/O board with the screw holes on the display-assembly base.
2. Replace the two screws (M2.5x3.5) to secure the side-I/O board to the display-assembly base.
3. Route the SIO-signal cable, SIO-power cable, and audio-board cable through the routing guides on the display-assembly base.
4. Connect the SIO-signal cable, SIO-power cable, and audio-board cable to the connectors on the system board.
5. Align the screw holes on the side I/O-board shield with the screw holes on the display-assembly base.
6. Replace the two screws (M3x5) to secure the side I/O-board shield to the display-assembly base.
Next steps
1. Install the speakers.
Removing and installing components 73