Dell GX280DT User Guide - Page 169

4. If you are removing the card permanently, install a filler bracket in the empty card-slot opening. If you need a filler bracket, contact Dell. NOTE: Installing filler brackets over empty card-slot openings is necessary to maintain FCC certification of the computer. The brackets also keep dust and dirt out of your computer. 5. Lower the retention arm and press it into place. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 6. Close the computer cover, reconnect the 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. 7. 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. 8. Remove the card's driver from the operating system. 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. Installing a PCI Express x1 Card 1. Follow the procedures in "Before You Begin." 2. Remove the card cage: a. Check any cables connected to cards through the back-panel openings. Disconnect any cables that will not reach the card cage once they are removed from the computer. b. Gently pull on the handle and lift the card cage up and away from the computer. 1 card cage 2 handle 3. If you are installing a new card, remove the filler bracket to create an empty card-slot opening. If you are replacing a card that is already installed in the computer, remove the card. If necessary, disconnect any cables connected to the card. Grasp the card by its top corners, and ease it out of its connector.