Dell OptiPlex 755 User's Guide - Page 183

2 1 3 4 1 card fully seated 2 card not fully seated 4 bracket caught outside of slot 3 bracket within slot 8 Before closing the card retention latch, ensure that: • The tops of all cards and filler brackets are flush with the alignment guide • The notch in the top of the card or filler bracket fits around the alignment guide 9 Secure the card(s) by closing the card retention latch and snapping it into place. NOTICE: Do not route card cables over the cards. Cables routed over the cards can prevent the computer cover from closing properly or cause damage to the equipment. 10 Connect any cables that should be attached to the card. 11 Replace the computer cover (see "Replacing the Computer Cover" on page 317). NOTE: See the documentation that came with the card regarding the card's cable connections. 12 If you installed a sound card: a Enter system setup, select Integrated Audio from the Onboard Devices group, and change the setting to Off (see "System Setup" on page 280). b Connect external audio devices to the sound card's connectors. Do not connect external audio devices to the line-in connector on the back panel of the computer (see "Back Panel Connectors" on page 167). NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. Expansion Cards 183