Dell Dimension 2400 Series Owner's Manual page 53

Ensure that the card is fully seated and that its bracket is within the card slot.
not fully seated card
fully seated card
9
Secure the filler bracket onto the end of the card with the screw you removed in step 7.
10
Connect any cables that should be attached to the card.
See the documentation for the card for information about the card's cable connections.
NOTICE:
Do not route card cables over or behind the cards. Cables routed over the cards can cause
damage to the equipment.
card
card cutout
card connector
on system board
crossbar
bracket caught
outside of slot
Removing and Installing Parts
53