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Dell OptiPlex 7780 All-In-One - Heat Sink Removal and Installation

Dell OptiPlex 7780 All-In-One
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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 provides a visual representation of the PSU fan installation procedure.
Steps
1. Align the screw holes on the PSU fan with the screw holes on the display-assembly base.
2. Replace the two screws (M3x5) to secure the PSU fan to the display-assembly base.
3. Connect the PSU-fan cable to the connector on the system board.
4. Route the power-supply cable through the routing guides on the PSU fan.
Next steps
1. Install the bottom cover.
2. Install the system-board shield.
3. Install the back cover.
4. Install the cable cover (optional).
5. Install the stand.
6. Follow the procedure in After working inside your computer.
Heat sink
Removing the heat sink—UMA
Prerequisites
1. Follow the procedure in Before working inside your computer.
Removing and installing components
49

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