Dell Precision T7400 (Late 2007) - Manual (Page 197)

Adding and Replacing Parts 197
5 If you are installing a new card, remove the filler bracket to create a card-
slot opening. Then continue with step 7.
NOTICE: Ensure that you release the securing tab to unseat the card. If the card is
not removed correctly, the system board may be damaged.
6 If you are replacing a card that is already installed in the computer, remove
the card:
a If necessary, disconnect any cables connected to the card.
b If the card is full-length, press the release tab on the end of the
alignment guides on the fan bracket.
c If the connector has a release tab, press the release tab as you grasp the
card by its top corners, and ease it out of its connector.
7 Prepare the card for installation.
1 release tab 2 card retainer
1
2