Installing The Psu Fan - Dell OptiPlex 7490 All-In-One Service Manual

Steps
1. Remove the power-supply cable from the routing guides on the PSU fan.
2. Disconnect the PSU-fan cable from the system board.
3. Remove the two screws (M3x5) that secure the PSU fan to the display-assembly base.
4. Lift the PSU fan from the display-assembly base.

Installing the PSU fan

Prerequisites
If you are replacing a component, remove the existing component before performing the installation procedure.
About this task
The following image indicates the location of the PSU fan and provides a visual representation of the installation procedure.
Removing and installing components 51