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Dell OptiPlex 7490 All-In-One - Heat sink; Removing the heat sink-UMA

Dell OptiPlex 7490 All-In-One
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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 sinkUMA
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the stand.
3. Remove the cable cover (optional).
4. Remove the back cover.
5. Remove the system-board shield.
6. Remove the system fan.
52
Removing and installing components

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