Adding Parts
83
Opening the Computer Cover
CAUTION: Before you begin any of the procedures in this section,
follow the safety instructions on page 9.
CAUTION: To guard against electrical shock, always unplug your
computer from the electrical outlet before opening the cover.
1
Shut down the computer (see page 33).
NOTICE:
To disconnect a network cable, first unplug the cable from your
computer and then unplug it from the network wall jack.
2
Turn off any attached devices and disconnect them from their
electrical outlets.
3
Disconnect the computer power cable from the wall outlet, and then
press the power button to ground the system board.
NOTICE:
Ensure that sufficient space exists to support the open cover—at
least 30 cm (1 ft) of desktop space.
4
Lay the computer on its side so that the arrow on the bottom of the
computer points up.
5
Locate the
two
release buttons shown in the illustration, and then
press the
two
release buttons as you lift the cover.
release button
arrow
release
button
Summary of Contents for Dimension 4550 Series
Page 8: ...8 Contents ...
Page 18: ...18 Finding Information for Your Computer w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 74: ...74 Advanced Troubleshooting w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 136: ...136 Appendix w w w d e l l c o m s u p p o r t d e l l c o m ...
Page 152: ...152 Index 152 Index ...