HP Dv2910us HP Pavilion dv2500 and dv2700 Notebook PC - Maintenance and Servic - Page 120

Fan/heat sink assembly

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Fan/heat sink assembly Description Fan/heat sink assembly for computer models with Intel processors equipped with a UMA graphics subsystem (includes thermal material) Fan/heat sink assembly for use only with computer models with Intel processors equipped with a WWAN module (includes thermal material) Fan/heat sink assembly for use only with computer models with AMD processors (includes thermal material) Spare part number 448625-001 450096-001 455843-001 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 Battery on page 56). 5. Remove the following components: a. Hard drive (see Hard drive on page 61) b. Optical drive (see Optical drive on page 73) c. Keyboard (see Keyboard on page 74) d. Switch cover (see Switch cover on page 79) e. Display assembly (see Display assembly on page 82) f. Top cover (see Top cover on page 87) g. System board (see System board on page 106) Remove the fan/heat sink assembly: 1. Turn the system board upside down with the front toward you. 112 Chapter 4 Removal and replacement procedures

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Fan/heat sink assembly
Description
Spare part number
Fan/heat sink assembly for computer models with Intel processors equipped with a UMA graphics
subsystem (includes thermal material)
448625-001
Fan/heat sink assembly for use only with computer models with Intel processors equipped with a
WWAN module (includes thermal material)
450096-001
Fan/heat sink assembly for use only with computer models with AMD processors (includes thermal
material)
455843-001
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
Battery
on page
56
).
5
.
Remove the following components:
a
.
Hard drive (see
Hard drive
on page
61
)
b
.
Optical drive (see
Optical drive
on page
73
)
c
.
Keyboard (see
Keyboard
on page
74
)
d
.
Switch cover (see
Switch cover
on page
79
)
e
.
Display assembly (see
Display assembly
on page
82
)
f
.
Top cover (see
Top cover
on page
87
)
g
.
System board (see
System board
on page
106
)
Remove the fan/heat sink assembly:
1
.
Turn the system board upside down with the front toward you.
112 Chapter
4
Removal and replacement procedures