HP Pavilion g4 Maintenance and Service Guide - Page 87

Fan and heat sink

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Fan and heat sink NOTE: The fan and heat sink spare part kits include replacement thermal material. 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 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 Heat sink 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 654119-001 subsystem with discrete video memory For use only with computer models equipped with the Intel HM65 or HM55 chipset and a graphics 654120-001 subsystem with UMA video memory For use only with computer models equipped with an HM65 chipset and a graphics subsystem with 641141-001 discrete video memory For use only with computer models equipped with an HM65 chipset and a graphics subsystem with 641140-001 UMA video memory For use only with computer models equipped with an HM55 chipset and a graphics subsystem with 637190-001 discrete video memory For use only with computer models equipped with an HM55 chipset and a graphics subsystem with 637189-001 UMA video 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 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. Component replacement procedures 79

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Fan and heat sink
NOTE:
The fan and heat sink spare part kits include replacement thermal material.
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
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
Heat sink 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
654119-001
For use only with computer models equipped with the Intel HM65 or HM55 chipset and a graphics
subsystem with UMA video memory
654120-001
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.
Component replacement procedures
79