Fan/heat sink assembly
The fan/heat sink assembly spare kit includes replacement thermal material.
For use only with computer models equipped with graphics subsystems with discrete memory
For use only with computer models equipped with graphics subsystems with UMA memory
For use only with computer models equipped with ATI Mobility Radeon HD4650 graphics
To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the right side
and rear panel 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:
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.
Disconnect all external devices connected to the computer.
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.
Remove the battery (see
Remove the following components:
Hard drive (see
Optical drive (see
Switch cover and keyboard (see
Display assembly (see
Top cover (see
USB board (see
System board (see
Remove the fan/heat sink assembly:
Turn the system board upside down, with the expansion port 3 and external monitor port toward
Disconnect the fan cable (1) from the system board.
Loosen the three Phillips PM2.5×14.0 spring-loaded, captive screws (2), (3), and (4) that secure
the fan/heat sink assembly to the system board.
Battery on page
Hard drive on page
Optical drive on page
Switch cover and keyboard on page
Display assembly on page
Top cover on page
USB board on page
System board on page
Component replacement procedures
Spare part number