Fan/Heat Sink Assembly - HP Pavilion dv9000 Maintenance And Service Manual

Fan/heat sink assembly

Description
Fan/heat sink assembly (includes heat sink and thermal material)
NOTE:
When replacing the fan/heat sink assembly, be sure that the display switch module is removed
from the defective fan/heat sink assembly and installed on the replacement fan/heat sink assembly.
See Display switch module on page 82
information.
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 applications.
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
1.
computer on, and then shut it down through the operating system.
Disconnect all external devices connected to the computer.
2.
Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
3.
then unplugging the AC adapter from the computer.
Remove the battery (see
4.
Remove the following components:
5.
Hard drive (see
a.
Optical drive (see
b.
Switch cover (see
c.
Keyboard (see
d.
Speaker assembly (see
e.
Display assembly (see
f.
Top cover (see
g.
Wireless switch board (see
h.
Audio board (see
i.
Front USB board (see
j.
Top cover trim (see
k.
System board (see
l.
ENWW
for display switch module removal and spare part number
Battery on page 40).
Hard drive on page 45)
Optical drive on page
Switch cover on page
Keyboard on page 56)
Speaker assembly on page
Display assembly on page
Top cover on page 68)
Wireless switch board on page
Audio board on page
Front USB board on page
Top cover trim on page
System board on page
52)
54)
59)
62)
73)
89)
77)
80)
85)
Component replacement procedures
Spare part number
448016-001
91