PC keeps shutting off

deadlyclaris

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Oct 26, 2011
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I have a very irritating problem. My computer will randomly turn off as if someone pulled the power cord out of the psu. Now, I know a bit about computers myself. I've checked the temps, CPU hits 55C under heaviest of load. I thought it was the psu. I bought a 750w one and I just installed it. Shortly after, the computer turned off.

I am seriously running out of ideas! It's not the PSU, it's not overheating (My case is a huge tower one with multiple fans and great ventilation). What on Earth could it be?

Also, I reinstalled windows. All the drivers were reinstalled as well.
 

croak2012

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Nov 5, 2011
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I would first rule out software issues by running various malware and virus scans in safe mode . run a disk check too.
and then you could make a start on the hardware side of things by opening up case and checking for dust build up and checking connections. also check power lead for any damage.
 

deadlyclaris

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Oct 26, 2011
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I fixed it. Turns out, my 4GBs of RAM was not enough. Under load, my RAM was 80% used. It was only DDR2. I assume the sticks overheated or just couldn't continue putting out so much effort. So I got a new mobo that supports DDR3 and 8GBs of RAM and now everything is fine. Thanks for the help!
 

rsinj

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Nov 11, 2011
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Good that you resolved your issue, however, I don't think your diagnosis is what was causing your problem.