NOTE: To properly ventilate the computer, allow at least a
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.
Heat sink
All heat sink spare part kits include replacement thermal material, including thermal grease and pads.
Description | Spare part number |
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Heat sink for use in computers with UMA graphics | |
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Heat sink for use in computers with discrete graphics | |
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Before removing the 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.
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 58).
5.Remove the bottom door (see Bottom door on page 64).
6.Remove the fan (see Fan on page 85).
Remove the heat sink:
1.Position the computer
2.If removing the discrete heat sink, in the order indicated, loosen the captive Phillips screws (1) that secure the heat sink to the system board.
3.Lift the heat sink up at an angle (2).
86 Chapter 4 Removal and replacement procedures
