3. Remove the audio board (3) by lifting it straight up.
Reverse this procedure to install the audio board.
Fan/heat sink assembly
NOTE: All fan/heat sink assembly spare part kits include replacement thermal material.
Description Spare part number
For use only in computer models with Intel processors:
●
Equipped with discrete graphics subsystem memory and 8.1 processors
450933-001
●
Equipped with discrete graphics subsystem memory and 7.9 processors
434986-001
●
Equipped with UMA graphics subsystem memory
446521-001
For use only in computer models with AMD processors:
●
Equipped with discrete graphics subsystem memory
449960-001
●
Equipped with UMA graphics subsystem memory 451860-001
NOTE: When replacing the fan/heat sink assembly, be sure that the power button board is removed
from the defective fan/heat sink assembly and installed on the replacement fan/heat sink assembly.
See
Power button board on page 64 for power button board removal information.
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 applications.
Exhaust air is displaced through the ventilation grill located on the left side of the computer.
86 Chapter 4 Removal and replacement procedures
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