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The power to the fan has a problem

George_Bud

I have an old laptop that has some problems. The fan is ok. I test it and it works. The fan need at least 3.5 v to work. But when I put the fan connector in its socket ( I think this is the correct term to it ), at first I get 5.4 v but then after aprox. 30 seconds I get 0.3 v and the fan stops spining. And because the fan is not spining the laptop is overheating.
Any suggestion or hacks, components, advice ?

 

P.S.

 

If you need any aditional information about the laptop, please ask. :)

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Moved to Troubleshooting.

"It pays to keep an open mind, but not so open your brain falls out." - Carl Sagan.

"I can explain it to you, but I can't understand it for you" - Edward I. Koch

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Can you change the fan profile in the bios?

No. I dont have any fan options or power options in the bios. I only have main, advance, security, boot and exit.

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