Dell Dimension 4500 - Manual (Page 70)

70 A d d i n g Pa r t s
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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.
The computer’s card connectors allow you to install different types of
devices such as modems, network adapters, and video cards.
Installing a Card
Before you begin any of the procedures in this section, follow the
safety instructions on page 9.
1 If you are replacing a card, remove the current driver for the card from
the operating system.
2 Shut down the computer (see page 22).
NOTICE: To disconnect a network cable, first unplug the cable from your
computer and then unplug it from the network wall jack.
3 Turn off any attached devices and disconnect them from their
electrical outlets.
4 Disconnect the computer power cable from the wall outlet, and then
press the power button to ground the system board.
5 Open the computer cover (see page 66).
6 Press the tab on the card retention arm and raise the retention arm.