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Dell OptiPlex All-in-One Plus 7420 - Bottom cover; Removing the bottom cover

Dell OptiPlex All-in-One Plus 7420
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Figure 42. Installing the I/O cover
Steps
1. Place the I/O cover on the display-assembly base.
2. Align the I/O slots with the I/O ports and the screw holes on the I/O cover with the screw holes on the display-assembly
base.
3. Replace the two screws (M3x5) that secure the I/O cover to the display-assembly base.
Next steps
1. Install the system-board shield.
2. Install the back cover.
3. Install the stand.
4. Follow the procedure in After working inside your computer.
Bottom cover
Removing the bottom cover
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the stand.
3. Remove the back cover.
4. Remove the system-board shield.
5. Remove the I/O cover.
About this task
The following image indicates the location of the bottom cover and provides a visual representation of the removal procedure.
Removing and installing Customer Replaceable Units (CRUs)
69

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