Removing the computer access panel
To access internal components, you must remove the access panel.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as a USB ash drive, from the computer.
3. Turn o the computer properly through the operating system, and turn o any external devices.
4. Disconnect the power cord from the AC outlet and disconnect any external devices.
IMPORTANT: Regardless of the power-on state, voltage is always present on the system board as long
as the system is plugged into an active AC outlet. To prevent damage to internal components, you must
disconnect the power cord from the power source before opening the computer.
5. If the computer is on a stand, remove the computer from the stand and lay the computer down.
6. Remove the thumbscrew on the rear of the computer (1). Then slide the panel forward (2), and then lift
it o the computer (3).
NOTE: If necessary, a Torx T15 or at-bladed screwdriver can be used to loosen the thumbscrew.
NOTE: Your computer model may look slightly dierent from the illustration in this section. Some
models have vent holes on the access panel.
Removing the computer access panel 9
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