Dell Dimension C521 - Manual (Page 69)

Removing and Installing Parts
69
If you are installing or replacing an expansion card, follow the procedures in the next section. If you are
removing and not replacing an expansion card, see "Removing an Expansion Card" on page 73.
If you are replacing a card with a different type of card, remove the current driver for the card from the
operating system.
Installing an Expansion Card
1 Follow the procedures in "Before You Begin" on page 59.
2 Gently push the release tab on the inside of the card retention door to pivot the door open. Because
the door is captive, it will remain in the open position.
3 If you are installing a new card, remove the filler bracket to create a card-slot opening, then continue
with step 5.
1 PCI Express x1 card 2 PCI Express x16 card 3 PCI
4 PCI Express x1 card slot 5 PCI Express x16 card slot 6 PCI card slot
1
4
2 3
5
6