Dell OptiPlex 755 User's Guide - Page 186
Installing a PCI Express x16 Card or DVI Card, remove the card see Removing a PCI Express
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Installing 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). NOTE: For PCI card locations, see "System Board Components" on page 172. 3 Gently lift the release tab on the card retention latch from the inside and pivot the latch open. 4 If you are installing a new PCI Express x16 card or DVI card, remove the filler bracket to create a cardslot opening. Then continue with step 5. 5 If you are replacing a PCI Express x16 card or DVI card, remove the card (see "Removing a PCI Express x16 Card or DVI Card" on page 189). If necessary, disconnect any cables connected to the card. Then continue with step 6. 6 Prepare the card for installation. CAUTION: Some network adapters automatically start the computer when they are connected to a network. To guard against electrical shock, be sure to unplug your computer from its electrical outlet before installing any cards. NOTE: See the documentation that came with the card for information on configuring the card, making internal connections, or customizing it for your computer. 7 Place the card in the connector and press down firmly. Ensure that the card is fully seated in the slot. 1 1 PCI Express x16 card 2 2 PCI Express x16 card connector 186 Expansion Cards