Dell Vostro 200 (Mid 2007) - Manual (Page 163)

Removing and Installing Parts
163
5 Ensure that the cover is seated correctly.
6 Replace and tighten the two screws that secure the computer cover.
7 Move the computer to the upright position.
NOTICE:
To connect a network cable, first plug the cable into the network device
and then plug it into the computer.
NOTICE:
Ensure that none of the system air vents are blocked.
1 computer cover tab 2 slot
3 screws (2) 4 computer cover
1
2
3
4