Dell OptiPlex GX280 - Manual (Page 227)

1 bracket within slot
2 bracket caught outside of slot
3 fully seated card
4 not fully seated card
6. Release the card lever, ensuring that the tab fits into the notch on the front end of the card.
7. Secure the card by lowering the hinged lever on the back panel.
8. Close the computer cover.
9. Attach the computer stand (optional).
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.
10. Connect your computer and devices to electrical outlets, and turn them on.
After you open and close the cover, the chassis intrusion detector, if installed and enabled, causes the following
message to appear on the screen at the next computer start-up:
ALERT! Cover was previously removed.
11. Reset the chassis intrusion detector by changing Chassis Intrusion to On or On-Silent.
NOTE: If an admin password has been assigned by someone else, contact your network administrator for information
on resetting the chassis intrusion detector.
12. If you installed a sound card, perform the following steps:
a. Enter system setup , select Audio Controller, and change the setting to Off.
b. Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the
microphone, speaker/headphone, or line-in connectors on the back panel.
13. If you installed an add-in network adapter and want to turn off the integrated network adapter:
a. Enter system setup , select Network Controller and change the setting to Off.