HP COMPAQ DX2718 MT - Manual (Page 56)

6–20 483941-001 Service Reference Guide
Removal and Replacement Procedures— Microtower (MT)/Small Form Factor (SFF) Chassis
7. Lift the hard disk drive cage out of the chassis.
Removing the Hard Drive Cage
8. Disconnect the power cable 1 and data cable 2 from the back of the hard drive.
Disconnecting the Hard Drive Cables