Compaq DESKPRO 2000 SERIES Maintenance & Service Manual page 161

7. Remove the screw on the right side of the drive that secures the drive in the chassis.
8. Pull the drive straight out of the chassis.
Figure 5-42. Removing the CD-ROM Drive
To replace the 5.25-inch wide drive bay device, complete the following steps:
1. Transfer the two wafer screws from the old drive to the new one.
2. Reverse the above procedures.
5-48 Removal and Replacement Procedures