Fan and heat sink
NOTE: The fan and heat sink spare part kits include replacement thermal material. Replacement
thermal material is also available in the Thermal Material Kit, spare part number 634433-001.
Description Spare part number
Fan 639460-001
Heat sink:
For use only with computer models equipped with an AMD processor:
For use only with computer models equipped with a graphics subsystem with discrete video memory 639462-001
For use only with computer models equipped with a graphics subsystem with UMA video memory 639463-001
For use only with computer models equipped with an Intel processor:
For use only with computer models equipped with an HM65 chipset and a graphics subsystem with
discrete video memory
641141-001
For use only with computer models equipped with an HM65 chipset and a graphics subsystem with
UMA video memory
641140-001
For use only with computer models equipped with an HM55 chipset and a graphics subsystem with
discrete video memory
637190-001
For use only with computer models equipped with an HM55 chipset and a graphics subsystem with
UMA video memory
637189-001
NOTE: To properly ventilate the computer, allow at least 7.6 cm (3 in) of clearance on the left side of
the computer. The computer uses an electric fan for ventilation. The fan is controlled by a temperature
sensor and is designed to turn on automatically when high temperature conditions exist. These
conditions are affected by high external temperatures, system power consumption, power
management/battery conservation configurations, battery fast charging, and software requirements.
Exhaust air is displaced through the ventilation grill located on the left side of the computer.
Before removing the fan and 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), and then remove the following components:
●
Optical drive (see
Optical drive on page 45)
●
Hard drive (see
Hard drive on page 47)
●
WLAN module (see
WLAN module on page 51)
●
Keyboard (see
Keyboard on page 53)
Component replacement procedures
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