problem relating crashes after formatting windows...details

jarraramjad

Distinguished
Jan 17, 2011
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ok guys so i went away from home for like 10 days when i came back my pc was randomly turning on and off when i pushed the power button.dont know what the problem is.it happened to me before, it was the ram last time so i seated the ram and the problem was fixed.i had recently booted windows 7 from 8.now when i ran my pc it was lagging hard cpu usage went to 100 % just by opening a browser.in the process no program was using all of the % and then my pc crashes after running 5 minutes under normal load and 10 minutes idle.i dont know if its my cpu or ram or psu or the windows 7 but on windows 8 all was fine.when my pc crashes it starts turning on--1 sec gap--off and repeats the cycle till infinity. dont know what to do havent used pc for 15 days. :(
 
Solution
Sounds to be a heat issue, I'll suggest checking your heatsink has not come loose. Or it may be time for a thorough cleaning of the system.
That's where I would start personally