Dell Dimension 2350 User Manual page 15

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover.
5. Remove the computer cover.
NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the
computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.
6. Lay the computer on its side so that the system board is on the bottom of the inside of the computer.
7. Unscrew and remove the filler bracket for the card slot you want to use.
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.
8. 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.