Hp 110 User Manual download pdf (Page 78)

Fan and sink

Description Spare part number

Fan 651897-001

Heat sink (includes replacement thermal material) 651898-001

NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3 inch) 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 or 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.

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 44).

5. Remove the service door (see

Service door on page 45).

6. Disconnect the hard drive cable from the system board (see

Hard drive on page 50).

7. Disconnect the WLAN antenna cables from the WLAN module (see

WLAN module on page 46).

8. Disconnect the WWAN antenna cables from the WWAN module (see

WWAN module

on page 47).

9. Remove the following components:

a. Keyboard (see

Keyboard on page 53).

b. Top cover (see

Top cover on page 56).

c. System board (see

System board on page 67).

Remove the fan:

1. Position the system board upside down, with the front toward you.

2. Disconnect the fan cable (1) from the system board.

3. Remove the two Phillips M2.0x4.0 screws (2) that secure the fan to the system board .

70 Chapter 4 Removal and replacement procedures

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Hp 110 User Manual Page 78