Replacing the power supply

1.Turn off the computer properly through the operating system, then turn off any external devices.

2.Disconnect the power cord from the power outlet.

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.

3.Unplug the DC power cable from the connector on the rear of the display head.

4.Remove the side panels from each side of the base. To do so, push up on each end of the bottom edge of the panel (1), and then pull the bottom edge of the panel off the base (2) followed by the top edge of the panel.

5.Unplug the AC power cord from the right side of the power supply.

6.Slide the lever on the left side of the power supply back (1) and pull the power supply out of the base (2).

10 Chapter 2 Hardware upgrades