Filter
Top Products
4. Remove the fan (3).
Reverse this procedure to install the fan.
Heat sink
NOTE: The heat sink spare part kit includes replacement thermal material.
Description Spare part number
PCH heat sink for use with all computer models 683843-001
Heat sink only for use with computer models equipped with an AMD processor 664999-001
Heat sink for use only with computer models equipped with an Intel processor 667121-001
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 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.
78 Chapter 4 Removal and replacement procedures