Quick Reference Guide
25
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.
1
Follow the procedures in "Before You Begin" in the
User’s Guide
.
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.
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").
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.
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.
NOTICE:
Ensure that sufficient space exists to support the removed cover—at least 30 cm (1 ft) of desk top space.
Summary of Contents for Precision D490
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Page 15: ...Quick Reference Guide 15 Front View 1 2 3 5 6 8 9 10 11 12 13 4 7 ...
Page 45: ...w w w d e l l c o m s u p p o r t d e l l c o m Dell Precision 工作站 690 快速參考指南 DCD0 型 ...
Page 48: ...48 目錄 ...
Page 80: ...80 快速參考指南 ...
Page 86: ...86 목차 ...
Page 122: ...122 빠른 참조 안내서 ...
