Dell OptiPlex GX280 - Manual (Page 352)

NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
7. Replace the computer cover, reconnect the computer and devices to electrical outlets, and turn them on.
8. Uninstall the card's driver.
9. If you removed a sound card:
a. Enter system setup , select Audio Controller, and change the setting to On.
b. Connect external audio devices to the audio connectors on the computer back panel.
10. If you removed an add-in network connector:
a. Enter system setup , select Network Controller, and change the setting to On.
b. Connect the network cable to the integrated connector on the computer back panel.
PCI Express Cards
Your computer supports one PCI Express x16 card and one PCI Express x1 card.
1 PCI Express x16 card 3 PCI Express x1 card slot
2 PCI Express x1 card
4 PCI Express x16 card slot
If you are installing or replacing a PCI Express card, follow the procedures in the next section. If you are removing but not
replacing a card, see " Removing a PCI Express Card ."
If you are replacing a card, uninstall the driver for the old card.
If you are installing or replacing a PCI card, see " Installing a PCI Card ."
Installing a PCI Express Card
1. Follow the procedures in " Before You Begin ."
2. Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in
the open position.
3. Remove the card retention mechanism:
a. Place your thumb on the top of the card retention mechanism and grip the bottom of the retention mechanism
with your fingers.
b. With your free hand, gently squeeze the sides of the retention mechanism to release it from the tab slots
holding it in place.