Maintenance and Service Guide

Heat sink

NOTE: The heat sink spare part kit includes replacement thermal material and 4 captive screws,

secured by C-clips.

Description Spare part number

For use only on computer models equipped with an AMD processor 769236-001

For use only on computer models equipped with an Intel processor 768022-001

Before removing the heat sink, 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.

3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet

and then unplugging the AC adapter from the computer.

4. Remove the keyboard/top cover (see

Keyboard/top cover on page 34), and then remove the

following components:

a. Battery (see

Battery on page 38)

b. WLAN module (see

WLAN module on page 41)

c. Fan (see

Fan on page 44)

d. Audio/USB board (see

Audio/USB board on page 43)

e. Speakers (see

Speakers on page 45)

f. Display assembly (see

Display assembly on page 47)

g. System board (see

System board on page 56)

Remove the heat sink:

1. Turn the system board upside down with the front toward you.

2. Loosen the four captive screws (1) that secure the heat sink to the system board.

NOTE: Due to the adhesive quality of the thermal material located between the heat sink

and system board components, it may be necessary to move the heat sink from side to side to

detach it.

Heat sink