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Removal steps
Heat-sink-and-fan assembly
Prerequisite
Before you start, read Generic Safety and Compliance Notices, and print the following instructions.
The heat sink and fan assembly might be very hot. Before you open the computer cover, turn off the
computer and wait several minutes until the computer is cool.
For access, do the following:
1. remove the computer cover. See "Computer cover" on page 48.
2. Disconnect the microprocessor fan cable from the system board.
Replacement procedure
1. Follow the following sequence to loosen the four screws that secure the heat-sink-and-fan assembly to
the system board. Then, lift the heat-sink-and-fan assembly off the system board.
• Partially loosen screw
• Partially loosen screw
Notes:
• Carefully loosen the four screws to avoid any possible damage to the system board. The four screws
cannot be removed from the heat sink and fan assembly
• You might have to gently twist the heat sink and fan assembly to free it from the microprocessor.
• Do not touch the thermal grease while handling the heat sink and fan assembly.
1a
, fully loosen screw
1b
1c
, fully loosen screw
1d
, and then fully loosen screw
, and then fully loosen screw
.
Chapter 6
Hardware removal and installation
1a
.
1c
.
61
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