Dell Precision T3400 (Late 2007) - Manual (Page 175)

Adding and Replacing Parts
175
16 Install any drivers required for the card, as described in the card
documentation.
PCI Express Cards
Removing a PCI Express Card
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
1 Follow the procedures in "Before You Begin" on page 143.
2 Remove the computer cover (see "Removing the Computer Cover" on
page 145).
3 Press the release tabs on the card retention door and pivot the door open.
4 Remove the screw that secures the PCI Express Card.
1 release tab 2 card retention door
3 alignment bar 4 screw
5 filler bracket
2
1
5
4
3