PC shuts off without reason

I need a hand.  My computer was working fine and then all of a sudden started to turn off.  I noticed that if I left it for a long time, he stayed longer.  If I tried to turn it on as soon as he died, he left just as fast.  , I have a problem with my power supply, mother board ro something else.

Thanks for any help

Hüffer,

Thanks a lot for your help.  I opened my box and it seemed that the dust bunnies have had a family reunion.  I cleaned the fins of the case fan, CPU fan fins and hunting of the rabbit party (what a waste).  I noticed that the CPU fan was some how down the mounting bracket (children) and so not was the cooling of the processor.  I had to get a new slice (night mare), cooling gel and he had fixed 10:00 the next morning.  Yet once again, I thank you and have a great year.

Tags: Notebooks

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