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Removing the Computer Cover and Front Panel
DellPrecision™Workstation490User'sGuide
Removing the Computer Cover
Removing the Front Panel
Rotating the Hard-Drive Carrier Out of the Computer
Removing the Computer Cover
1. Follow the procedures in Before You Begin.
2. If you have installed a security cable, remove it from the security cable slot.
3. Lay your computer on a flat surface with the cover facing up.
4. Pull back the cover latch release.
5. Locate the three hinge tabs on the edge of the computer.
6. Grip the sides of the computer cover and pivot the cover up, using the hinges as leverage points.
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 removing the cover.
NOTICE: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your
computer's electronic components. You can do so by touching an unpainted metal surface on the computer.
NOTICE: Opening the computer cover while the computer is running could result in a shutdown without warning and a loss of data in open programs.
The computer cooling system cannot function properly while the cover is removed.
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.
NOTE: The computer in the following images is configured as a tower computer. See Changing Between Tower and Desktop Modes for information
regarding computer orientation.
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