Dell XPS 420 (Late 2007) - Manual (Page 101)

Removing and Installing Parts
101
Removing the Computer Cover
CAUTION:
Before you perform 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:
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" on page 99.
2 If you have installed a security cable, remove it from the security cable slot.
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.
3 Lay your computer on its side with the computer cover facing up.
4 Pull back the cover release latch on the top panel.
1 cover release latch 2 computer cover 3 hinge tabs (3)
2
1
3
book.book Page 101 Tuesday, November 27, 2007 10:29 AM