HP Pavilion dm1-4300 HP Pavilion dm1 Entertainment PC Maintenance and Service - Page 80

Heat sink

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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 Heat sink for use with the PCH chip with all computer models Heat sink for use on computer models equipped with an AMD processor Heat sink for use only with computer models equipped with an Intel processor Spare part number 683843-001 664999-001 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. 74 Chapter 4 Removal and replacement procedures

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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
Heat sink for use with the PCH chip with all computer models
683843-001
Heat sink for use on 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.
74
Chapter 4
Removal and replacement procedures