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Figure 22. Applying thermal grease on the top of the processor
1. processor 2. thermal grease
3. thermal-grease syringe
NOTE: The thermal-grease is intended for one-time use only. Dispose of the syringe after
you use it.
c. Place the heat sink onto the processor.
d. Tighten the four screws to secure the heat sink to the system board.
NOTE: Tighten the screws diagonally opposite to each other. Do not over-tighten the heat
sink retention screws when installing the heat sink. To prevent over-tightening, tighten the
retention screw until resistance is felt, and stop once the screw is seated. The screw tension
should be no more than 6 in-lb (6.9 kg-cm).
Next steps
1. Install the cooling shroud.
2. Follow the procedure listed in After working inside your system.
As the system boots, it detects the presence of the new processor and automatically changes the
system configuration information in the System Setup.
3. Press <F2> to enter the System Setup and check that the processor information matches the new
system configuration.
4. Run the system diagnostics to verify that the new processor operates correctly.
5. Update the system BIOS.
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