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Fan
Description
Fan
NOTE:
To properly ventilate the computer, allow at least 7.6 cm (3.0 in) of clearance on the sides 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.
Before removing the fan, 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.
Place the computer in "Battery Safe mode"
3.
Disconnect all external devices connected to the computer.
4.
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.
5.
Remove the battery
a.
Service doors
b.
Hard drive
c.
Keyboard
d.
Top cover
To remove the fan:
1.
Position the computer upright on a flat surface and open the display as far as possible.
2.
Disconnect the fan cable (1) from the system board.
(Battery on page
60), and then remove the following components:
(Service doors on page
(Hard drive on page
38)
(Keyboard on page
41)
(Top cover on page
45)
(Battery Safe mode on page
32).
Component replacement procedures
Spare part number
L00843-001
31).
57
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