Removal and Replacement Procedures
5.21 Fan/Heat Sink Assembly
Fan/Heat Sink Assembly Spare Part Number Information
For use with full-featured computer models
For use with defeatured computer models
✎
When replacing the fan/heat sink assembly, be sure the power
button board is removed from the defective fan/heat sink
assembly and installed on the replacement fan/heat sink
assembly. Refer to
power button board removal information.
1. Prepare the computer for disassembly
remove the following components:
❏
❏
❏
❏
❏
❏
❏
❏
❏
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2. Turn the system board upside down with the expansion port 3
and external monitor port toward you.
5–56
Section 5.13, "Power Button Board,"
Hard drive
(Section
Optical drive
(Section
Switch cover
(Section
Keyboard
(Section
Speaker assembly
Display assembly
Top cover
(Section
Audio board
(Section
USB/power connector board
System board
(Section
5.4)
5.9)
5.10)
5.11)
(Section
5.12)
(Section
5.14)
5.15)
5.16)
(Section
5.20)
Maintenance and Service Guide
431449-001
431448-001
for
(Section
5.3) and
5.19)