HP ProDesk 400 G4 Base Model Microtower PC Bedienungsanleitung PDF herunterladen (Seite 14)

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 compact discs or USB ash drives, from the computer.

3. Turn o the computer properly through the operating system, then turn o any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: 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. You must disconnect the power cord to avoid damage to

the internal components of the computer.

5. Loosen the thumbscrew on the rear of the computer (1), and then slide the panel back (2) and lift if o

the computer (3).

6 Chapter 2 Hardware upgrades

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HP ProDesk 400 G4 Base Model Microtower PC Bedienungsanleitung Seite 14