Compaq DESKPRO 2000 SERIES Maintenance & Service Manual page 217

To remove a drive from a 5.25-inch wide bay, complete the following steps:
1. Perform preparation procedures described in Section 5.2.3.
2. Remove the access panel (Section 5.2.6.1).
3. Remove the front bezel (Section 5.2.17.1).
4. Disconnect all cables from the back of the drive.
Figure 5-93. Disconnecting the Signal and Power Cables from the CD-ROM Drive (Desktop)
5-104 Removal and Replacement Procedures