To replace the rear access cover, slide tabs on the front of the rear cover under the slots on the rear of
the front cover (1), and then press the rear of the rear cover down (2).
Reconnect the power cord and any external devices, and then turn on the computer.
Removing and replacing the display head
The display head can be replaced or upgraded to a different display.
Remove all removable media, such as USB flash drives, from the computer.
Turn off the computer properly through the operating system, and turn off any external devices.
Disconnect the power cord from the AC outlet and disconnect any external devices.
as the system is plugged into an active AC outlet. You must disconnect the power cord and wait
approximately 30 seconds for the power to drain to avoid damage to the internal components of the
Remove the base unit rear access cover. See
Disconnect the two display cables attached to the system board by squeezing inward on the two ends of
the cable connectors (1) and pulling the cable connectors up and off the system board (2).
Chapter 3 Hardware repair and upgrade
Regardless of the power-on state, voltage is always present on the system board as long
Removing and replacing the base unit access covers