How to Adjust the Speed of a CPU Cooling Fan

The cooling fan speed of a central processing unit (CPU) can be modified to better utilize the maximum performance of your computer. Understanding how it works is the key to making the correct adjustment. The fan diverts heat on the main microchip and prevents it from melting. In some cases, too much propulsion is a waste of electrical energy; therefore, the fan needs to be slowed. In other situations, the fan should speed up to prevent many simultaneous processes from damaging the computer. You can change a CPU's fan speed to increase its longevity and value.

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Step

Click "Start" and then click "Control Panel."

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Click "Performance and Maintenance" and then select "Power Saver." (Note: Your computer may show another subcategory. Look under "Performance and Maintenance" to be aware of your specific options.)

Step

Move the "CPU Processing Speed" slider up in order to speed up the cooling fan; move it down to slow it down. (Note: The slider position may vary, and it depends on the manufacturer and model number.)

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Click "Apply" and "OK" to activate the new settings. For a fast way to view your CPU speed using the DirectX Diagnostic Tool, proceed to Step 5.

Step

Click "Start" and then click "Run."

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Type "dxdiag" and then click "OK."

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Go to the "System" tab and view the speed on the "Processor" line.