EVGA GTX660 2gb Reboots.

Hello, I been around the forums for awhile now so hope ya all can help out.

1st problem: My buddy has a system that don't seem to play to well with the 660 for some odd reason, I was stress testing the 660 via TeamViewer and I noticed the GPU hitting 88C and the fan speed goes up to 51% and stays there and it will shutdown the system. Tho at idle the fan speed will lower to 35 - 40% and slowly goes up to 51% at around 71C and stays there. We have installed different drivers to try to solve this problem, but no luck.

We installed EVGA Precision and set up a fan profile which is fine, its 100% at 80C now which is what I want to feel comfortable. This was a problem with a fresh install of Win 8, and a fresh install of Win 7, so its the card, he don't have another system to try it in, I can't try it is mine as I live 300miles away.



2nd problem: Now that we have the fan problem under control, it wont hit 65C full loaded for 20 min. But, the system will shutdown still, kinda like if the 660 is still getting hot. He streams a lot so it puts a good load on the whole system, So I turn to the CPU, I used prime95 for 30min and the thing never hit 50C, that was along with stress testing both GPU and CPU, both staying is good temp range and the thing never shutdown.

Ok I though it was all fine now and out of the blue it shutsdown again, with only TeamSpeak open. (It did this on a fresh install of Win 8, and Win 7, only drivers and a few programs installed). I gave him settings to change in the bios, like to over volt the CPU and ram just a bit from stock, and turned off C1E and all the power saving mess and it will still shutdown out off the blue, don't even have to be doing anything.

Sorry its so long.

System spec:

OS: Windows 7 Ultimate 64bit
CPU: AMD Athlon II x4 640 3ghz
RAM: 8gb Gskill DDR3 1333mhz
MOBO: ASRock 970 Extreme 3 P1.70 bios (Im gonna try having him update bios to P1.90)
PSU: ThemalTake 750watt (A replacement we picked out with 72amps on the 12v rail)
VIDEO: EVGA GTX660 2gb

Thanks
-Viking2121-
 


Thats what I thought as well, tho HW Monitor the 12v isn't shown on that Board, shows a few other things and them voltages stay pretty still. It looks a lot like mine here http://www.mediafire.com/convkey/75b2/db3how9lcio2dmtfg.jpg, Guess its a ASRock thing.