Compaq Deskpro 4000N Maintenance & Service Manual page 108

4. Pull the drive release latch on the left side of the drive towards the center of the adjacent drive
bays and slide the drive to the rear of the bay; then, lift the drive from the bay.
Figure 5-25. Removing the CD-ROM Drive
When replacing this drive, transfer the four screws that take the place of drive rails from the old drive
to the new one. There are two screws on each side of the drive.
The guide screws mounted on the right side of the drive are standard-head screws. The guide
screws mounted on the left side of the drive are shoulder-head screws. The drive release latch
will not work properly if the wrong screws are installed.
To replace the drive, reverse the above procedures.
CAUTION: When servicing the computer, ensure that cables are placed in their proper locations during the
reassembly process. Improper cable placement can damage the computer.
CAUTION: Use only 3/16-inch or 5-mm long screws as guide screws. Longer screws can damage the
internal components of the drive.
5-34 Removal and Replacement Procedures