Fan/Heat Sink Assembly - Compaq Presario CQ45 Maintenance And Service Manual

Fan/heat sink assembly

Description
Fan/heat sink assembly for use in computer models with Intel processors with UMA graphics
subsystems (includes thermal material)
Fan/heat sink assembly for use in computer models with Intel processors with discrete graphics
subsystems (includes thermal material)
Fan/heat sink assembly for use in computer models with AMD processors (includes thermal material) 492260-001
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/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
5. Remove the following components:
a. Hard drive (see
b. Optical drive (see
c. Keyboard (see
d. Switch cover (see
e. Speaker assembly (see
f. Display assembly (see
g. Top cover (see
h. System board (see
Remove the fan/heat assembly (fan/heat sink appearance may vary):
1. Turn the system board upside down with the external monitor port toward you.
2. Loosen the four Phillips PM2.0×10.0 captive screws (1) that secure the fan/heat sink assembly to
the system board.
NOTE:
assembly and system board components, it may be necessary to move the fan/heat sink assembly
from side to side to detach the assembly.
Battery on page
Hard drive on page
Optical drive on page
Keyboard on page
Switch cover on page
Speaker assembly on page
Display assembly on page
Top cover on page
System board on page
Due to the adhesive quality of the thermal material located between the fan/heat sink
41).
44)
42)
54)
56)
58)
60)
67)
80)
Component replacement procedures
Spare part number
486838-001
486839-001
83