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Dell OptiPlex All-in-One Plus 7420 - Installing the power-supply fan

Dell OptiPlex All-in-One Plus 7420
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Figure 53. Removing the power-supply fan
Steps
1. Disconnect the power-supply fan cable from its connector (FAN SYS) on the system board.
2. Remove the power-supply fan cable from the routing guides on the display-assembly base.
3. Remove the audio-board cable from the routing guides on the display-assembly base and the power-supply fan.
4. Remove the antenna cables from the routing guides on the display-assembly base and the power-supply fan.
5. Remove the two screws (M3x5) that secure the power-supply fan to the display-assembly base.
6. Lift the power-supply fan off the display-assembly base.
Installing the power-supply fan
Prerequisites
If you are replacing a component, remove the existing component before performing the installation process.
About this task
The following images indicate the location of the power-supply fan and provide a visual representation of the installation
procedure.
82
Removing and installing Field Replaceable Units (FRUs)

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