Dell OptiPlex 755 User Manual page 125

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User's Guide
I/O Panel
I/O Panel
Removing the I/O Panel
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in the Product Information Guide.
CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover.
NOTE: Note the routing of all cables as you remove them so that you can re-route them correctly when installing the new I/O panel.
1. Follow the procedures in Before You
2. Remove the computer cover (see
NOTICE: When sliding the I/O panel out of the computer, be extremely careful. Carelessness may result in damage to the cable connectors and the
cable routing clips.
3. Remove the screw that secures the I/O panel. Press the release button to slide the card away from the front of the computer.
4. Disconnect all of the cables from the I/O panel, and remove the panel from the computer.
1 I/O panel release button
3 I/O panel
Replacing the I/O Panel
1. To replace the I/O panel, follow the removal procedure in the reverse order.
NOTE: Use the guides on the I/O panel bracket to help position the I/O panel in place, and use the notch on the I/O panel bracket to help seat
the panel.
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Begin.
Removing the Computer Cover).
2 securing screw
4 I/O cable connector