Fan And Heat Sink - HP DV4-2153 Maintenance And Service Manual

Fan and heat sink

Description
Heat sink (includes thermal material)
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For use in models with Intel processors UMA graphics subsystems
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For use in models with AMD processors and UMA graphics subsystems
Fan (includes thermal material)
NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the right side
and rear panel 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 and heat sink assemblies, 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
5. Remove the following components:
a. Hard drive (see
b. Optical drive (see
c. Keyboard (see
d. Keyboard cover (see
e. Display assembly (see
f. Top cover (see
g. System board (see
Remove the fan:
1. Turn the system board upside down with the front toward you.
2. Remove the two Phillips PM2.5×4.0 screws (1) securing the fan to the system board.
114 Chapter 4 Removal and replacement procedures
Battery on page 55).
Hard drive on page 59)
Optical drive on page
Keyboard on page 72)
Keyboard cover on page
Display assembly on page
Top cover on page 92)
System board on page
57)
74)
80)
107)
Spare part number
486838-001
492260-001
486844-001