HP 15-g029wm HP 15 Notebook PC Compaq 15 Notebook PC Maintenance and Service G - Page 66

Heat sink assembly, Keyboard see

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Heat sink assembly NOTE: The heat sink assembly spare part kit includes replacement thermal materials. Description Heat sink Spare part number 753895-001 NOTE: To properly ventilate the computer, allow at least 7.6 cm (3.0 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 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 31), and then remove the following components: ● Keyboard (see Keyboard on page 37) ● Top cover (see Top cover on page 40) ● WLAN module (see WLAN module on page 48) ● System board (see System board on page 53) To remove the heat sink assembly: 1. Position the system board upside down. 2. Loosen the screws on the heat sink (1) that secure the heat sink assembly to the system board. 58 Chapter 4 Removal and replacement procedures

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Heat sink assembly
NOTE:
The heat sink assembly spare part kit includes replacement thermal materials.
Description
Spare part number
Heat sink
753895-001
NOTE:
To properly ventilate the computer, allow at least
7.6 cm
(3.0 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 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
31
), and then remove the following components:
●
Keyboard (see
Keyboard
on page
37
)
●
Top cover (see
Top cover
on page
40
)
●
WLAN module (see
WLAN module
on page
48
)
●
System board (see
System board
on page
53
)
To remove the heat sink assembly:
1.
Position the system board upside down.
2.
Loosen the screws on the heat sink
(1)
that secure the heat sink assembly to the system board.
58
Chapter 4
Removal and replacement procedures