Computer restarts during Rendering??

Hi guys, I built a computer for the first and it works great, until I start rendering large templates. While rendering out projects everything seems fine for a minute or 2 then out of the blue the computer will just turn off then restart itself. I have a Corsair 650w PSU, 32gb of Ram, 3770k(stock clock speed), 3 hdd, GTX 660 TI and the Z77X-UP5-TH motherboard. It renders just fine on smaller projects but really large ones it just turns off then restarts. I was messing around with the multiprocessing and the only way i got it to work was to set CPU's for other applications to 2 or higher. 2 was the lowest I could go.

Has anyone had any similar prooblems?? I believe it might be the power supply but I under the impression that 650w was more than what i would need. Could it be a faulty power supply?

Any help would be greatly appreciated.


Thanks in advance
Jon

I actually built a Hackintosh because the current Mac Line up is not that great when it comes to video cards etc.

@Angelo This has fixed the problem. I found out through the Intel forum. http://forums.creativecow.net/readpost/2/1024901#reply_box

They were saying that Ivy Bridge was only designed to run DRAM at 1.5v but mine was set to AUTO and running at 1.536V so i turned it down to 1.450v. Now everything seem to be running fine. I have exported the comp 2 twice now with no problems.

Thanks man. You really save my life here. I was getting tired of crashing during exports.

Also many thanks to the others here with input.

Might the cause be thermal? How's the temperature inside the machine during render?

Walter Soyka
Principal & Designer at Keen Live
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