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Removing the Computer Cover

Dell™ Dimension™ C521 Service Manual

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

1. Follow the procedures in Before You Begin.
   
   

NOTICE: Ensure that sufficient space exists to support the removed cover—at least 30 cm (1 ft) of desk top space.

NOTICE: Ensure that you are working on a level, protected surface to avoid scratching either the computer or the surface on which it is resting.

2. If you have installed a padlock through the padlock ring on the back panel, remove the padlock.
   
   
3. Locate the cover release latch shown in the illustration. Then, slide the release latch back as you lift the cover.
   
   

1

computer cover

2

cover release latch

3

security cable slot

4. Grip the sides of the computer cover and pivot the cover up using the hinge tabs as leverage points.
   
   
5. Remove the cover from the hinge tabs and set it aside on a soft nonabrasive surface.
   
   

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