6Removal and replacement procedures

Adherence to the procedures and precautions described in this chapter is essential for proper service. After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify that all components operate properly.

NOTE: Not all features listed in this guide are available on all computers.

NOTE: HP continually improves and changes product parts. For complete and current information on supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then follow the on-screen instructions.

Serviceability features

The computers include features that make them easy to upgrade and service. A Torx T-15, Phillips, or flat blade screwdriver is needed for many of the installation procedures described in this guide.

Preparation for disassembly

1.Close any open software applications.

2.Exit the operating system.

3.Remove any diskette or compact disc from the computer.

4.Turn off the computer and any peripheral devices that are connected to it.

CAUTION: Turn off the computer before disconnecting any cables.

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. In some systems the cooling fan is on even when the computer is in the “Standby,” or “Suspend” modes. The power cord should always be disconnected before servicing a unit.

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Chapter 6 Removal and replacement procedures