HP Tx2-1370us HP TouchSmart tx2 Notebook PC - Maintenance and Service Guide - Page 72

Fan/heat sink assembly, Display assembly see

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Fan/heat sink assembly Description Fan/heat sink assembly (includes thermal material) Spare part number 487925-001 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 cord. 4. Remove the battery (see Battery on page 35). 5. Remove the following components: a. Hard drive (see Hard drive on page 37) b. Memory module compartment cover (see Memory module on page 41) c. Optical drive (see Optical drive on page 40) d. Keyboard (see Keyboard on page 46) e. Switch cover (see Switch cover on page 48) f. Display assembly (see Display assembly on page 50) g. Top cover (see Top cover on page 53) h. Power switch assembly (see Power switch assembly on page 55) i. System board (see System board on page 58) Remove the fan/heat assembly: 1. Disconnect the fan cable (1) from the system board. 2. Remove the four Phillips PM2.0×4.0 screws (2) that secure the fan/heat sink assembly to the system board. 64 Chapter 4 Removal and replacement procedures

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Fan/heat sink assembly
Description
Spare part number
Fan/heat sink assembly (includes thermal material)
487925-001
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 cord.
4.
Remove the battery (see
Battery
on page
35
).
5.
Remove the following components:
a.
Hard drive (see
Hard drive
on page
37
)
b.
Memory module compartment cover (see
Memory module
on page
41
)
c.
Optical drive (see
Optical drive
on page
40
)
d.
Keyboard (see
Keyboard
on page
46
)
e.
Switch cover (see
Switch cover
on page
48
)
f.
Display assembly (see
Display assembly
on page
50
)
g.
Top cover (see
Top cover
on page
53
)
h.
Power switch assembly (see
Power switch assembly
on page
55
)
i.
System board (see
System board
on page
58
)
Remove the fan/heat assembly:
1.
Disconnect the fan cable
(1)
from the system board.
2.
Remove the four Phillips PM2.0×4.0 screws
(2)
that secure the fan/heat sink assembly to the
system board.
64
Chapter 4
Removal and replacement procedures