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Dell OptiPlex All-in-One Plus 7420 - I;O cover; Removing the I;O cover

Dell OptiPlex All-in-One Plus 7420
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Figure 40. Installing the coin-cell battery
Steps
With the positive side (+) facing up, insert the coin-cell battery into the battery socket (RTC) on the system board and snap the
battery into place.
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.
I/O cover
Removing the I/O 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.
About this task
The following image indicates the location of the I/O cover and provides a visual representation of the removal procedure.
Removing and installing Customer Replaceable Units (CRUs)
67

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