Hardware Reference Guide - Compaq 500B/505B

30 Removing and Replacing a Hard Disk Drive
9 Reattach the screw at the back of the computer.
10 Connect the cables, such as the keyboard, mouse,
Ethernet, and monitor cables.
11 Reconnect the power cord.
12 Turn on the computer and all peripherals, such as the
monitor.
13 Verify that the replacement hard disk drive works
properly.