Dell OptiPlex 755 User's Guide - Page 189

13 If you installed a network adapter card and want to turn off the integrated network adapter: a Enter system setup, select Integrated NIC from the Onboard Devices group, and change the setting to Off (see "System Setup" on page 280). b Connect the network cable to the network adapter card's connectors. Do not connect the network cable to the integrated network connector on the back panel of the computer. 14 Install any drivers required for the card as described in the card documentation. Removing a PCI Express x16 Card or DVI Card 1 Follow the procedures in "Before You Begin" on page 21. 2 Remove the computer cover (see "Removing the Computer Cover" on page 168). 3 Gently lift the release tab on the card retention latch from the inside and pivot the latch open. 4 If necessary, disconnect any cables connected to the card. 5 Press the lever with your thumb until you release the securing tab. If you are removing a PCI Express x16 card, go to step 6. If you are removing a DVI card, go to step 7 6 While pressing the lever, pull the card up and out of the card connector. 2 3 1 4 1 PCI Express x16 card 4 securing tab 5 2 lever 5 PCI Express x16 card connector 3 securing slot (not all cards) Expansion Cards 189