Dell Vostro 200 (Mid 2007) - Manual (Page 135)

Removing and Installing Parts
135
16 Connect your computer and devices to their electrical outlets, and turn
them on.
See the documentation that came with the drive for instructions on
installing any software required for drive operation.
17 Enter system setup (see "System Setup" on page 170) and select the
appropriate Diskette Drive option.
18 Verify that your computer works correctly by running the Dell Diagnostics
(see "Dell Diagnostics" on page 84).
Removing the FlexBay Drive Panel Insert
1 Gently press on the release lever outward to release the lock.
2 Pull the FlexBay drive panel insert away from the bezel.