Dell Precision 350 - Manual (Page 18)

8. Before you lower the retention arm, ensure that:
l The tops of all cards and filler brackets are flush with the alignment bar
l The notch in the top of the card or filler bracket fits around the alignment guide
Press the arm into place, securing the card(s) in the computer.
9. Connect any cables that should be attached to the card.
See the documentation for the card for information about the card's cable connections.
1 bracket caught outside of
slot
2 bracket within slot
3 fully seated card
4 not fully seated card
1 filler bracket
2 alignment bar
3 alignment guide
4 retention arm
NOTICE: Do not route card cables over or behind the cards. Cables routed over the cards can prevent the computer cover from closing properly or
cause damage to the equipment.
NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer.