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Lenovo laptop cooling fan not working.
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Cmos battery is what keeps your laptop bios as well as the date and time settings.
Power on your lenovo laptop and see if this solution fixed your boot issue.
How to check if your lenovo laptop fan is working the fan is an integral part of a laptop.
While this might not be a cause for alarm on its own when combined with overheating of the cpu it is definitely a red alert.
It is therefore alarming when you notice that your cpu cooling fan is not spinning.
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Possible cases of laptop fan not working or spinning 1.
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A flat surface is highly recommended.
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Take it out for 30 seconds and then put it back.
You should see a small circular cmos battery.
There are several fans in a computer including a psu power supply unit fan cpu central processing unit fan case chasis fan and.
Disconnect laptop power cord if its connected to power source open the back shell of your laptop.
It keeps the internals of your device cooler.
There is no reason why the fan stops suddenly after a bootup.
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Do not use it on your lap.
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In most cases a laptop fan will not work after you boot up the laptop.