Compaq 239158-999 - Mini Tower - Power Supply 250 Watt Hardware Reference Manual page 15

Hardware Reference Guide
4. Disconnect all power and data cables from the drives in the 5.25-
inch drive bays.
5. To release the drives from the 5.25-inch drive bay, press the
short yellow drivelock
Activating the Drivelocks (Shown from the Rear of the Chassis)
6. While pressing the drivelock, pull the drives out of the drive bay.
1
as shown.
Product Features
1-11