Hardware Reference Guide

Removing and replacing the computer access panel
Removing the computer access panel
The access panel must be removed to access internal components.
1. Remove all removable media, such as optical discs or USB ash drives, from the computer.
2. Turn o the computer properly through the operating system, and then turn o any external devices.
3. Disconnect the power cord from the AC outlet and disconnect any external devices.
CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power to drain
before adding or removing memory modules. Regardless of the power-on state, voltage is always supplied
to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing
memory modules while voltage is present may cause irreparable damage to the memory modules or
system board.
4. Remove/disengage any security devices that prohibit opening the computer.
5. Place the computer face down on a soft at surface. HP recommends that you set down a blanket, towel,
or other soft cloth to protect the bezel and screen surface from scratches or other damage.
6. Remove the rear port cover.
See Removing the rear port cover on page 12.
7. Disconnect cables connected to the computer.
See Disconnecting cables on page 12.
8. Remove the stand.
See Attaching and removing a stand on page 7.
9. Pull up the edges of the access panel and then lift the access panel o the computer.
24 Chapter 3 Hardware repair and upgrade