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4–32 Maintenance and Service Guide
Removal and replacement procedures
Fan
✎
The fan spare part kit includes replacement thermal material.
✎
To properly ventilate the computer, allow at least 7.6 cm (3 in) of clearance on the left side 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, follow these steps:
1. Shut down the computer.
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 4-7).
5. Remove the following components:
a. Switch cover (see “Switch cover” on page 4-8)
b. Keyboard (see “Keyboard” on page 4-9)
c. Optical drive (see “Optical drive” on page 4-13)
d. Speakers (see “Speakers” on page 4-15)
e. Palm rest (see “Palm rest” on page 4-16)
f. Solid-state module (see “Solid-state module” on page 4-20)
g. Top cover (see “Top cover” on page 4-22)
h. Heat sink (see “Heat sink” on page 4-29)
Description
Spare part
number
Fan 535766-001