HP Net PC 20 Technical Information download pdf (Page 80)

Fan/heat sink assembly

NOTE: The fan/heat sink assembly spare part kit includes replacement thermal material.

Replacement thermal material is also available in the Thermal Material Kit, 646135-001.

Description Spare part number

For use only with computer models equipped with an Intel Pentium processor and a graphics

subsystem with discrete video memory

646180-001

For use only with computer models equipped with an Intel Pentium processor and a graphics

subsystem with UMA video memory

646181-001

For use only with computer models equipped with an Intel Celeron processor and a graphics

subsystem with UMA video memory

646184-001

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:

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 35), and then remove the following components:

●

Optical drive (see

Optical drive on page 36)

●

WLAN module (see

WLAN module on page 39)

●

Keyboard (see

Keyboard on page 45)

●

Top cover (see

Top cover on page 48)

●

USB board (see

USB board on page 55)

●

Power connector cable (see

Power connector cable on page 56)

●

Display assembly (see

Display assembly on page 60)

●

System board (see

System board on page 67)

72 Chapter 4 Removal and replacement procedures

1 2 ... 75 76 77 78 79 80 81 82 83 84 85 ... 111 112

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HP Net PC 20 Technical Information Page 80

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