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6. Remove the two screws that secure the system board shield, and then slide the system board shield
out of the computer.
Figure17. Removing the system board shield
7. To reinstall the system board shield, align the tabs in the system board shield with the slots in the
computer. Then, slide the system board shield in so that the screw holes align with those in the
computer.
Figure18. Installing the system board shield
8. Reinstall the screws to secure the system board shield to the computer.
9. Go to “Completing the parts replacement” on page 96.
Replacing the microprocessor fan
Attention
Do not open your computer or attempt any repair before reading and understanding the “Important safety
information” in the Safety, Warranty, and Setup Guide that came with your computer. To obtain a copy of the
Safety, Warranty, and Setup Guide, go to:
http://www.lenovo.com/support
This section provides instructions on how to replace the microprocessor fan.
Chapter 9. Replacing FRUs 77