HP dx2358 - Microtower PC Service & Reference Manual page 50

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
Service Reference Guide
Removal and Replacement Procedures— Microtower (MT) Chassis
489243-001 6–15