In our recent article How To Fix CPU Fan Noise, we explain that most of the time your fan is running on high because the fan blade or heat sink are clogged. However, if the fan is clear you may simply want to reduce the CPU usage. The problem here is that a key power setting is missing from many Windows computers.
It is very possible that you cannot easily reduce the maximum performance of your CPU because the PROCESSOR POWER MANAGEMENT option is missing from ADVANCED POWER OPTIONS. Fortunately there is an easy fix:
HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > Power > PowerSettings> 54533251-82be-4824-96c1-47b60b740d00 > bc5038f7-23e0-4960-96da-33abaf5935ec
Attributes
and the value to 2
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Thank you so much for this solution
I had the exact problem with Lenovo Thinkbook 13S G2.
The fan was making a hell of a noise.
CPU temp >60C.
The CPU frequency was > 160% on idle, while CPU usage were PLUGGED IN to 90% and the temp is < 50C, so the fan is not working at this temp, and CPU frequency is <50% when idle.
Hi Garcia; I really struggled with this one too. Dropping the performance is not ideal but it beats replacing a good computer!