Replacing A System Fan - Acer AR180 F1 Series User Manual

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2 Place the air duct on the chassis so that the tabs on the air duct
align with the slots on the chassis.
Caution! Do not pinch or unplug cables that may be near or under
the air duct.
3 Observe the post-installation instructions described on page 25.

Replacing a system fan

The system has four high-performance PWM fans to provide the
cooling for the system. Fan speed may be controlled by a setting in
BIOS (see Chapter 4).
To replace a fan module:
1 Perform the pre-installation instructions described on page 24.
Warning! The system fan becomes very hot when the system is on.
Allow it to cool off first before handling.