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Question

Laptop not booting, fan spinning fast.

Jan 30, 2015 11:29PM PST

My laptop won't boot anymore. If I push the power button, the LED turns on and the fan starts spinning normally. After 2-3 seconds, the fan starts spinning very fast, and 2-3 seconds later, the laptop turns off itself. I think it's the motherboards temperature sensor that gives a too high reading, so the laptop tries to lower it by spinning the fan at full speed, but then it shuts down. Sometimes, the laptop shuts down before the bios screen shows up (Press F2 to enter bios), but sometimes it reaches the bios screen and then it shuts down.

Very sometimes, the laptop does boot fine, but the fan doesn't spin at all. When I open speccy, it says that the motherboard is 5 degrees Celsius (41 degrees Fahrenheit). I think that's the reason the fan doesn't spin then. My CPU temps seem normal, but after some activity, the temperature gets high because the fan isn't spinning.

The bios doesn't show any temperatures readings, and most of the time, I can't even get into the bios. What do you think it is? And, can I repair it?

Discussion is locked

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Answer
No make and model.
Jan 30, 2015 11:32PM PST

Some models break down like that and the news is grim. You can't trust CPU temps but always know to do the work. I'm finding more folk that won't do the work (cleaning, heatsink compound replacement) for many reasons. If you don't do this sort of work, then have it done. There are folk that want assurance that it will fix it. But that would require I see the laptop ahead of time to check out the model's history on the web, prior run ins and such.
Bob

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PackardBell easynote TM81
Jan 30, 2015 11:54PM PST

Hi,
Sorry, I forgot to mention my laptop model. It's a PackardBell easynote TM81. I recently cleaned my fan, but I don't think that it actually heats too much. After a night with no power, it does the same. It wouldn't heat to around 100 degrees Celsius in 2-4 seconds, right?

P.S. I have windows 8.1 installed on my SSD, but I think that's useless information here.

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I'll disagree.
Jan 31, 2015 12:03AM PST

I've seen it rise slow, fast and then in areas that temp sensor is not. This model looks to be circa 2010 so it's well into the number of years where the usual work has to be done. You may get clients that want to debate it but it's time.
Bob