HP 500B - Manual (Page 40)

4. Attach the two screws to secure the hard disk drive to the bay.
Figure 2-41 Replacing the screws that secure the hard drive
5. Attach the power and data connectors to the back of the drive.
Figure 2-42 Attaching the connectors
6. Replace the front bezel, computer access panel, and all cables.
7. Lock any security devices that were disengaged when the access panel was removed.
32 Chapter 2 Removal and Replacement Procedures Microtower (MT) Chassis