Maintenance and Service Guide

Reverse this procedure to install the power connector and cable.

Fan

Description Spare part number

Fan 592970-001

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, 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.

Disconnect the power cord.

4. Remove the battery (see

Battery on page 36).

5. Remove the following components:

a. Hard drive (see

Hard drive on page 38)

b. Top cover (see

Top cover on page 49)

c. Keyboard (see

Keyboard on page 51)

d. Display assembly (see

Display assembly on page 56)

e. System board (see

System board on page 60)

Remove the fan:

Turn the system board upside down, with the rear toward you.

2. Disconnect the fan cable (1) from the system board.

3. Remove the two Phillips PM2.5×6.0 screws (2) that secure the fan to the system board.

Component replacement procedures