Remove the processor:

1.Position the computer upside-down.

2.Use a flat-bladed screwdriver to turn the processor locking screw (1) one-half turn counterclockwise until you hear a click.

3.Lift the processor (2) straight up and remove it.

NOTE: The gold triangle (3) on the processor must be aligned with the triangle embossed on the processor slot when you install the processor.

Reverse this procedure to install the processor.

Top cover

NOTE: All top covers include the touchpad assembly.

Description

Spare part number

 

 

Top cover for use in model 4540s:

 

 

 

With a fingerprint reader

683506-001

 

 

Without a fingerprint reader

683507-001

 

 

For use in model 4440s/4441s:

 

 

 

With a fingerprint reader

683666-001

 

 

Without a fingerprint reader

683667-001

 

 

Before removing the top cover, follow these steps:

1.Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.

2.Disconnect all external devices connected to the computer.

Component replacement procedures 67