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Removing the Computer Cover
DellPrecision™Workstation690User'sGuide
1. Follow the procedures in Before You Begin.
2. If you have installed a security cable, remove it from the security cable slot.
3. Carefully, with the help of an assistant, remove the computer stand (see Removing the Computer Stand).
4. Carefully, with the help of an assistant, lower your computer down to a flat surface with the cover facing up.
5. Pull back the cover latch release.
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.
CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before
attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See
your Product Information Guide for other important safety information.
CAUTION: The computer stand should be installed at all times to ensure maximum system stability. Failure to install the stand could result in the
computer tipping over, potentially resulting in bodily injury or damage to the computer.
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.
CAUTION: Your computer is heavy (it has an approximate minimum weight of 55 lbs) and can be difficult to maneuver. Seek assistance before
attempting to lift, move, or tilt it; this computer requires a two-man lift. Always lift correctly to avoid injury; avoid bending over while lifting. See
your Product Information Guide for other important safety information.
CAUTION: The computer stand should be installed at all times to ensure maximum system stability. Failure to install the stand could result in the
computer tipping over, potentially resulting in bodily injury or damage to the computer.
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.
NOTICE: Ensure that sufficient space exists to support the removed cover—at least 30 cm (1 ft) of desk top space.
1
cover latch release
2
computer cover
3
cover hinges