Removing And Replacing The Computer Access Panel; Removing The Computer Access Panel - HP ProOne 600 G3 21 inch All-in-One Business PC Hardware Reference Manual

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 flash drives, from the computer.
2. Turn off the computer properly through the operating system, and then turn off any external devices.
3. Disconnect the power cord from the AC outlet and disconnect any external devices.
CAUTION:
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 flat 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
7. Disconnect cables connected to the computer.
See Disconnecting cables on page
8. Remove the stand.
See Attaching and removing a stand on page
9. Pull up the edges of the access panel and then lift the access panel (2) off the computer.
28 Chapter 3 Hardware repair and upgrade
You must disconnect the power cord and wait approximately 30 seconds for the power to
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