Dell Dimension 4500C (Japan Only) - Manual (Page 86)

86 Adding Parts
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Adding Other Cards
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.
NOTICE: You must use low-profile cards for your computer. A full-size card
can cause damage to the computer or the card.
The computer’s card connectors allow you to install different types of
devices such as modems and network adapters.
1 Shut down the computer (see page 34).
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.
4 Remove the computer stand (see page 21).
5 Open the computer cover (see page 80).
6 Press the lever on the retention arm and raise the retention arm.