GPU causes PC to randomly shut off

iRyzza · Aug 27, 2013

Ok so my GTX 660 SC arrived today.

All fine and dandy, it slipped perfectly in the case, drivers installed flawlessly, I've played Minecraft flawlessly, then I play some higher tier games like; Empire Total War and Arma 2, both run 60 frames + on the highest settings. For about 5-10 minutes, then my computer completely shuts off, stays off for 3-5 seconds then starts up again like nothing happened.

It can't be the temperature of the card as it's running at 35 degrees, I checked using SpeedFan while running Arma 2.
The card requires 450w and my PSU is 500w.

CPU: i3 550.
Ram: 4gb.

I'am struggling to find out what's the problem as I've googled the problem and people are saying it's the temperature when in my case it's not. And the game doesn't even run long enough for the card to heat up enough.

Any suggestions would be greatly appreciated.

-Ryan

trapper · Aug 27, 2013

How much ram do you have? I'd try running a few passes of Memtest86+ from http://www.memtest.org/ to see if its your memory that's flaking out.

iRyzza · Aug 27, 2013

trapper :

I have 4GB of Ram, but the minimum requirement is 2GB. I just don't understand.

iRyzza · Aug 27, 2013

trapper :

And I've literally had the GPU in the computer for about 2 hours and it never used to shut off before I put the GPU in 2 hours ago. (if that made sense)

J_E_D_70 · Aug 27, 2013

What brand of PSU and how old is it?

What are you using to test GPU and CPU temps? It seems odd that GPU is cranking out 60fps with high settings in Arma II at 35C (or are you running low settings?). Should be higher than that.

iRyzza · Aug 27, 2013

J_E_D_70 :

I just tested Arma 2 again at the Max settings, getting 55fps, was at about 61-66 degrees (and rising) before shutdown, them temps aren't high enough to shut the computer down are they? and I'am using SpeedFan

J_E_D_70 · Aug 27, 2013

Nope, not hot enough for shutdown. Need the info on PSU - brand and age.

iRyzza · Aug 27, 2013

J_E_D_70 :

No brand on the thing, came with the Computer about 2 years ago, just has ATX-500w on the side..

J_E_D_70 · Aug 27, 2013

I'd get a name brand 550W or so supply from Seasonic, Corsair, etc. I'd bet the PSU is marginal and that once enough load is on it, it just dies.

Here's the list of good ones (Tier 3 or higher):
http://www.eggxpert.com/forums/thread/323050.aspx

iRyzza · Aug 27, 2013

J_E_D_70 :

This may help you, I'am currently running a tiny game called SpinTires (this is the first time playing it and it's on max settings) It's quite a demanding game BUT I'am looking at the temperatures of my computer in SpeedFan, and none of them are going above 55 degrees, which makes me think it's a over-heating problem, I've been playing this game for about 20 minutes and my computer is running flawlessly... (if any of that made sense..)

Update: My CPU, GPU and Cores are not exceeding 55 degrees.

Thischimp · Oct 28, 2014

I'm having the same problem with my PC, built it in February watt calculator said I'd be fine with a 500 as it only used about 300 on my old set up, so I brought an EVGA 750w PSU which off is more then enough and like unsaid it just shuts down and restarts, not on all games tho... Now I brought an r9 280x which took me to about 600w'ish so my 750 should still be more then enough, but now every game I play causes it to shut down... I downloaded software called coretemp, and apparently I never go higher then 35 degrees so can't be over heating?? All I can think of is its a faulty PSU?

What do you guys think?

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