Fan/heat sink assembly
NOTE:
The fan/heat sink assembly spare part kit includes replacement thermal material.
Replacement thermal material is also available in the Thermal Material Kit, using the following spare
part numbers:
●
640457-001 — For use only with computer models equipped with an AMD processor and a
graphics subsystem with discrete memory
●
640456-001 — For use only with computer models equipped with an AMD processor and a
graphics subsystem with UMA memory
●
650801-001 — For use only with computer models equipped with an Intel processor and a
graphics subsystem with 2048-MB of discrete memory
●
641493-001 — For use only with computer models equipped with an Intel processor and a
graphics subsystem with 1024-MB of discrete memory
●
641492-001 — For use only with computer models equipped with an Intel processor and a
graphics subsystem with UMA memory
Description
For use only with computer models equipped with an AMD processor:
For use only with computer models equipped with a graphics subsystem with discrete memory
For use only with computer models equipped with a graphics subsystem with UMA memory
For use only with computer models equipped with an Intel processor:
For use only with computer models equipped with a graphics subsystem with 2048-MB
discrete memory
For use only with computer models equipped with a graphics subsystem with 1024-MB
discrete memory
For use only with computer models equipped with a graphics subsystem with UMA memory
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/heat sink assembly, 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.
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Chapter 4 Removal and replacement procedures
Spare part number
640426-001
640425-001
650797-001
641477-001
641476-001