Dell OptiPlex GX260N User Guide - Page 115
Installing a Serial Port Adapter, Network Interface Card
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3 slots 6. Reconnect any cables that you removed in step 1. 7. Connect any cables that should be attached to the card. See the documentation for the card for information about the card's cable connections. NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment. 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 their electrical outlets, and turn them on. After you open and close the cover, the chassis intrusion detector, if 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 Enabled or Enabled-Silent. NOTE: If a setup 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: a. Enter system setup, select Integrated Devices, and change the setting for Sound 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: a. Enter system setup, select Integrated Devices and change the setting for Network Interface Card to Off. b. Connect the network cable to the add-in network adapter's connectors. Do not connect the network cable to the integrated connector on the back panel. 14. Install any drivers required for the card as described in the card documentation. Serial Port Adapters Installing a Serial Port Adapter CAUTION: Before you begin any of the procedures in this section, follow the steps in "CAUTION: Safety Instructions." CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before opening the cover. 1. Perform an orderly computer shutdown using the operating system menu.