Dell Dimension 8400 - Manual (Page 77)

Removing and Installing Parts
77
3 If you are installing a new card, remove the filler bracket to create a card-slot opening. Then
continue with step 5.
4 If you are replacing a card that is already installed in the computer, remove the card.
If necessary, disconnect any cables connected to the card. Grasp the card by its top corners,
and ease it out of its connector.
5 Prepare the card for installation.
See the documentation that came with the card for information on configuring the card,
making internal connections, or otherwise customizing it for your computer.
CAUTION:
Some network adapters automatically start the computer when they are connected to a
network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet
before installing any cards.
6 Place the card in the connector and press down firmly. Ensure that the card is fully seated in
the slot.
PCI card
edge
connector
card
connector
filler
bracket
retention
arm
lever