HP ENVY 14, Руководство по техническому обслуживанию и ремонту

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9. Remove the system board (2) by sliding it up and to the left at an angle.
Reverse this procedure to install the system board.
Fan/heat sink assembly
Description Spare part number
Fan/heat sink assembly (includes replacement thermal material) 608378-001
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 fan/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 cover and battery (see Battery on page 39 ).
5. Remove the hard drive (see Mass storage device on page 41 ).
6. Remove the memory module/wireless module compartment cover (see WLAN module
on page 47 ).
72 Chapter 4 Removal and replacement procedures