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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 the AMD A60M chipset and a graphics subsystem
with discrete video memory
649953-001
For use only with computer models equipped with the AMD A60M chipset and a graphics subsystem
with UMA video memory
649954-001
For use only with computer models equipped with the AMD RS880MD chipset and a graphics
subsystem with discrete video memory
649952-001
For use only with computer models equipped with an AMD Athlon, Phenom, Turion, or V-series
processor and a graphics subsystem with discrete video memory
639462-001
For use only with computer models equipped with an AMD Athlon, Phenom, Turion, or V-series
processor and 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 the Intel HM65 or HM55 chipset and a graphics
subsystem with discrete video memory and supports bus alive/chip off (BACO)
654119-001
For use only with computer models equipped with the Intel HM65 or HM55 chipset and a graphics
subsystem with UMA video memory and supports bus alive/chip off (BACO)
654120-001
For use only with computer models equipped with the HM65 chipset and a graphics subsystem with
discrete video memory
641141-001
For use only with computer models equipped with the HM65 chipset and a graphics subsystem with
UMA video memory
641140-001
For use only with computer models equipped with the HM55 chipset and a graphics subsystem with
discrete video memory
637190-001
For use only with computer models equipped with the 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.
Component replacement procedures
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