Heat sink
Description Spare part number
Heat sink (includes a heat sink clip and replacement thermal material)
Thermal Material Kits
For use with the Quad Core processor and nVidia graphics card
501116-001
For use with the Quad Core processor and ATI graphics card 495074-001
For use with the Dual-Core processor and nVidia graphics card 495075-001
For use with the Dual-Core processor and ATI graphics card 501117-001
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 battery (see
Battery on page 44).
5. Remove the following components:
a. Hard drive (see
Hard drive on page 50)
b. Optical drive (see
Optical drive on page 46)
c. Keyboard (see
Keyboard on page 60)
d. Switch cover (see
Switch cover on page 65)
e. Display assembly (see
Display assembly on page 68)
f. Top cover (see
Top cover on page 74)
g. Fan (see
Fan on page 79)
Remove the heat sink:
1. Position the computer right-side up, with the front toward you.
Component replacement procedures 81
