Solved Why does cpu fan runs all the time

July 10, 2018 at 10:15:34
Specs: Windows 8, 2.80GHz/4.00GB
I have a Lenovo PC comuputer that has the cpu fan running all the time. What causes this The pc computer is only on for a few minutes when the fans start running high speed to med to back to high speed mostly

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#1
July 10, 2018 at 13:09:52
✔ Best Answer
It sounds like it's overheating. How old is this PC? Have you ever opened up the case & blown the dust out of it? If not, it might look like this: https://en.wikipedia.org/wiki/File:...

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#2
July 10, 2018 at 13:18:59
It is about 5 years old. Its Monitor and computer all in one type of PC. I was thinking the same thing. It may be so clogged with dirt. I will take compress air hose to it. Thanks

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#3
July 12, 2018 at 13:16:38
If you can get to the CPU heat sink make sure you clean that as well as the vents and fans.

Always pop back and let us know the outcome - thanks


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#4
July 14, 2018 at 13:47:49
Also blow out the power supply from both ends. You may want to take the case outside as it will be messy.

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#5
January 1, 2019 at 05:35:03
One possible reason for this could be CPU overclocking. If your CPU is overclocked, you can often reset it by going into your computer's BIOS and restoring the BIOS to factory defaults.

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