e.
Rear cover (see
Rear cover on page 53)
f.
Top cover (see
Top cover on page 55)
g.
Subwoofer (see
Subwoofer on page 67)
Remove the video connector board:
1. Disconnect the video connector board cable (1) from the system board.
2. Remove the Phillips PM2.5×4.0 screw (2) that secures the video connector board to the base
enclosure.
3. Route the video connector board cable under the processor heat sink pipe (3).
4. Remove the video connector board (4) from the base enclosure.
Reverse this procedure to install the video connector board.
Processor fan
Description Spare part number
Processor fan 448162-001
NOTE: To properly ventilate the computer, allow at least a 7.6-cm (3-inch) clearance on the left and
right sides and rear panel of the computer. The computer uses two electric fans for ventilation. The fans
are controlled by a temperature sensor and are 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 grills located on the computer rear panel.
Before removing the processor 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.
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.
Component replacement procedures 69
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