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, spare part numbers 650277-001 (for use only with computer models equipped with an AMD processor) and 646135-001 (for use only with computer models equipped with an Intel processor).

Description

Spare part number

 

 

For use only with computer models equipped with an AMD processor

647316-001

 

 

For use only with computer models equipped with an Intel Core i5 or i3 processor and a graphics

646182-001

subsystem with discrete video memory

 

 

 

For use only with computer models equipped with an Intel Core i5 or i3 processor and a graphics

646183-001

subsystem with UMA video memory

 

 

 

For use only with computer models equipped with an Intel Pentium processor and a graphics

646180-001

subsystem with discrete video memory

 

 

 

For use only with computer models equipped with an Intel Pentium processor and a graphics

646181-001

subsystem with UMA video memory

 

 

 

For use only with computer models equipped with an Intel Celeron processor and a graphics

646184-001

subsystem with 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/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.

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 39), and then remove the following components:

●Optical drive (see Optical drive (select models only) on page 40)

●WLAN module (see WLAN module on page 43)

●Keyboard (see Keyboard on page 49)

●Top cover (see Top cover on page 52)

●USB board (see USB board on page 59)

●Power connector cable (see Power connector cable on page 60)

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Chapter 4 Removal and replacement procedures