Dell Dimension 4700 - Manual (Page 13)

If you are installing or replacing a card, follow the procedures in the next section. If you are removing but not replacing a card, see " Removing a PCI Card ."
If you are replacing a card, remove the current driver for the card from the operating system.
If you are installing or replacing a PCI Express card, see " Installing a PCI Express Card ."
Installing a PCI Card
1. Follow the procedures in " Before You Begin ."
2. Unscrew and remove the filler bracket for the card slot you want to use.
3. Align the cutout on the bottom of the card with the crossbar in the system board connector. Gently rock the card into the connector until it is fully
seated.
Ensure that the card is fully seated and that its bracket is within the card slot.
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.