Dell OptiPlex 755 User's Guide - Page 42
If you are replacing a card that is already installed in the computer, remove the card. If necessary
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Page 42 highlights
If you are replacing a card, uninstall the driver for the existing card. See the documentation that came with the card for instructions. 1 Follow the procedures in "Before You Begin" on page 21. 2 Remove the computer cover (see "Removing the Computer Cover" on page 27). 3 Gently push the release tab on the card retention latch from the inside to pivot the latch open. The latch will remain in the open position. 2 1 3 4 5 6 1 card retention latch 4 card-edge connector 2 alignment guide 5 card connector 3 card 6 release tab 4 If you are installing a new card, remove the filler bracket to create a card-slot opening. Then continue with step 5. 5 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. 6 If your card includes a card retention bar, remove the bar. Gently pull the securing tab, grasp the card by its top corners, and ease it out of its connector. 7 Prepare the new card for installation. NOTE: See the documentation that came with the card for information on configuring the card, making internal connections, or customizing it for your computer 42 Cards