Dell Dimension 4700 Series Service Manual page 16

4. 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.
5. If you are installing the card into the x16 card connector, position the card so the securing slot is aligned with the securing tab, and gently pull the
securing tab.
6. Place the card in the connector and press down firmly. Ensure that the card is fully seated and that the bracket is within the card slot.
7. If you replaced a card that was already installed in the computer and you removed the top of the retention mechanism, you may reinstall the top.
8. Secure the card bracket with the screw you removed in step 2.
NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or
cause damage to the equipment.