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The heat sink might be very hot. Before you open the computer cover, turn off the computer and wait
several minutes until the computer is cool.
1. Remove the computer stand. See "Replacing the computer stand" on page 16.
2. Remove the computer cover. See "Removing the computer cover" on page 18.
3. Remove the side I/O bezel. See "Replacing the side I/O bezel" on page 25.
4. Remove the system board shield. See "Replacing the system board shield" on page 26.
5. Replace the heat sink.
Notes:
• Carefully remove the screws from the system board to avoid any possible damage to the system
board. The screws cannot be removed from the heat sink.
• You might have to gently twist the heat sink to free it from the microprocessor.
• Do not touch the thermal grease while handling the heat sink.
Figure 46. Removing the heat sink
Figure 47. Installing the heat sink
6. Reinstall the removed parts. To complete the replacement, see "Completing the parts replacement" on
page 55.
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Chapter 4
Replacing hardware
33
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