PC restarting while gaming

[pchioccola]

My PC is restarting while playing demanding games (Far Cry 3, Black Ops 2). I've done Furmark test and it restarted less than 10 minutes, GPU temps were between 75~79. I've tried updating bios, drives, cleanning up.. it's a new build, less than 2 months.
I'm not sure what I should do, so please guys help me out!

My specs:
i5 3470
GTX 660
Corsair TX 750
Corsair Vengeance 8 Gb.

Thank you!

 

[quentin16564]

what's your cpu temps look like?

 

[pchioccola]

what's your cpu temps look like?

Are between 62~66 (max 68). Using AIDA64 Stability Test it was ok..

 

[smorizio]

Try running msi afterburner.set a fan profile to max the gpu fans out at 60c. Also at idle is your CPU temps normal is the 30-40 c range?? If there fine at non gaming try when gaming again to open the side of your computer case to see if it An air flow issue. The last would be run hardware monitor and look at your power supply voltages when gaming and see if they holding.

 

[pchioccola]

Try running msi afterburner.set a fan profile to max the gpu fans out at 60c. Also at idle is your CPU temps normal is the 30-40 c range?? If there fine at non gaming try when gaming again to open the side of your computer case to see if it An air flow issue. The last would be run hardware monitor and look at your power supply voltages when gaming and see if they holding.

Yes, my temps at idle are 30-40 CPU and 30-35 GPU.
I've just tried as you said and instead of restarting, the screen blinked and the game (far cry 3) stoped working properly.
I took a ps of hardware monitor, are these voltages normal ?
http://imageshack.us/photo/my-images/809/35266400.jpg/

 

[quentin16564]

Not to jump the gun i but thats plenty of power for that system, unless its a faulty unit. The fan profile can't hurt also download gpu-z\cpu-z and check core voltages while gaming.

 

[pchioccola]

Not to jump the gun i but thats plenty of power for that system, unless its a faulty unit. The fan profile can't hurt also download gpu-z\cpu-z and check core voltages while gaming.

My fan profile is 73% (max) in 70c.. Im going to try reducing it to 60..

 

[quentin16564]

yea they look normal.

 

[pchioccola]

Now it's not restarting, but the game stops working properly... the temps and frames go down but it keeps running.

 

[smorizio]

With Your rig make sure the mb bios has all the bug fixes. Also check your ram speed. Make sure xmp profile on so the ram running at max rated speed. In nvidia control if your using one monitor make sure multi monitor is off and have the slider set to performance. In the games may want turn down 4xx auto lancing. So that more of the gpu power goes to rendering fps. May also want try turning down the eye candy. I had an older 210 gpu that I fried playing coh on high...got on multi player map with lot of people and I over stressed the card till rig shut off. The card never worked right after I cooked it.