Dell XPS 420 (Late 2007) - Manual (Page 117)

Removing and Installing Parts
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4 If your computer includes a card retention mechanism to secure the x16
card, press the release tab downward gently and then pivot the mechanism
upward to access the card slots.
5 If you are installing a new card, remove the filler bracket to create a card-slot
opening. Then continue with step 7.
6 If you are replacing a card that is already installed in the computer, remove
the existing card.
If necessary, disconnect any cables connected to the card. If your card
includes a retention mechanism, remove the top of the retention
mechanism by pressing the tab and pulling up on the top.
1 release tab 2 card retention mechanism 3 card retention door
3
1
2
book.book Page 117 Tuesday, November 27, 2007 10:29 AM