Dell Dimension 8300 - Manual (Page 78)

78 A d d i n g Pa r t s
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Opening the Computer Cover
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions on page 9.
1 Shut down the computer through the Start menu (see page 27).
2 Ensure that your computer and attached devices are turned off. If your computer and
attached devices did not automatically turn off when you shut down your computer,
turn them off now.
NOTICE: To disconnect a network cable, first unplug the cable from your computer and then
unplug it from the network wall jack.
3 Disconnect any telephone or telecommunication lines from the computer.
4 Disconnect your computer and all attached devices from their electrical outlets, and
then press the power button to ground the system board.
CAUTION: To guard against electrical shock, always unplug your computer from
the electrical outlet before opening the cover.
NOTICE: Ensure that sufficient space exists to support the open cover—at least 30 cm (1 ft) of
desk top space.
5 Lay the computer on its side so that the arrow on the bottom of the computer
points up.