7.Slide the system board toward the front of the computer so that the connectors loosen from the rear of the chassis, and then lift the system board out of the computer (2).

Figure 6-39Removing the system board

NOTE: When replacing the system board, you must also change the chassis serial number in the BIOS.

CAUTION: Before reinstalling the fan sink you must clean the top of the processor and the bottom of the heat sink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply thermal grease to the top of the processor from the syringe supplied in the spares kit.

Changing from a Minitower to a Desktop Configuration

1.Remove/disengage any security devices that prohibit opening the computer.

2.Remove all removable media, such as compact discs or USB flash drives, from the computer.

3.Turn off the computer properly through the operating system, then turn off 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.Remove the computer access panel.

6.Remove the front bezel.

7.Disconnect all power and data cables from the back of the drives in the 5.25-inch drive bays.

Changing from a Minitower to a Desktop Configuration 117