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GTX 580/570 overclocking & grayscreen of death

post #1 of 38
Thread Starter 
Hello fellow 580 clockers. I was curious how you each test your OCs?
ATiTool seems to work great for memory, but I keep passing OCCT GPU stresses but get the gray/white screen of death in gaming for hours with the same clocks that pass OCCT with no errors?

Should I keep running game benchmarks for hours until I get the gray-screen/freeze and lower the clock an increment?

Advice and comments appreciated. smile.gif

Edit: Also, can a good clock fail because of higher voltage, even if the temps are great and completely under control?
Edited by VirtualJockey - 12/21/10 at 5:40pm
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post #2 of 38
I consider game benchmarks the gold standard in stability testing. A good clock can fail if the higher voltage is not high enough.
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post #3 of 38
Benchmarks are not real time games. Run the games to understand where your video card limit is. Benchmarks are the most popular to use only for convenience.

What I have done in the past is set different profiles with hotkeys, alt-tab, or close the game out to change the core/memory speed then jump right back in. What better way to make sure your video card is at its stable peak than stressing it with a real life scenario. (The cards intended use) You cannot play benchmarks...for the most part at least. thumbsupsmiley.png
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post #4 of 38
Thread Starter 
Quote:
Originally Posted by adamlau;11732294 
I consider game benchmarks the gold standard in stability testing. A good clock can fail if the higher voltage is not high enough.

The reason I ask is because I'm at 1.15v on my 580, but my temps are completely under control. Just wanted to rule voltage out at as the issue. I could game bench at 959 core for a solid 30 mins and pass all tests with no errors, but would get grey screens of death after X amounts of minutes. Got down to the 940s and could go for hours. Now in the 930s and probs, I'm just a noob at this.

939 core got a grey screen crash after about 3 hours or so. ran 936 game benchmarking for about 6 hours and no crash, but I did have a single freeze up during windows post (My afterburner setting shouldn't be applied until windows boots completely?)

Maybe that single restart was just bad luck and irrelevant?
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post #5 of 38
good to know i'm not alone with stability issues heh. i'm curious too if half of these peoples ocs are really stable at all. i've found that i can pass occt/furmark without issues but randomly my games will give the white/grey screen crap. imo it's a voltage problem. it's easy to prove that theory. your gtx is at 930 core right? lower your voltage by about .25v and run kombustor. the way it behaves should look familiar.
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post #6 of 38
Thread Starter 
Quote:
Originally Posted by travva;11732396 
good to know i'm not alone with stability issues heh. i'm curious too if half of these peoples ocs are really stable at all. i've found that i can pass occt/furmark without issues but randomly my games will give the white/grey screen crap.

Thanks, I'll try out Kombuster smile.gif
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post #7 of 38
One piece of advice to keep in mind. Never forget that overclocking your video card can expose instability in your CPU overclock. When in doubt, add a small bump in vcore to your processor as well and see if that doesn't fix anything. If it doesn't, keep working on your card.
post #8 of 38
Thread Starter 
Quote:
Originally Posted by travva;11732396 
lower your voltage by about .25v and run kombustor. the way it behaves should look familiar.

So lower by .25v and bench until I don't have probs in kombuster, and raise .25 after it's stable?

My apologies, just a little confused.

Edit: will Kombuster report errors, or just crash? My mem is 100% stable at 2232 in afterburner (4464) tested with ATiTool for over an hour.
I thought artifacts were a mem prob only.
Edited by VirtualJockey - 12/21/10 at 6:09pm
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post #9 of 38
Thread Starter 
Quote:
Originally Posted by skitzogreg;11732444 
One piece of advice to keep in mind. Never forget that overclocking your video card can expose instability in your CPU overclock. When in doubt, add a small bump in vcore to your processor as well and see if that doesn't fix anything. If it doesn't, keep working on your card.

I'm at 4.02GHz @ 1.45v on my CPU and really don't wish to bump the voltage any higher. 3.9GHz ran stable at 1.4v, took an entire bump to 1.45v to get 4.0 stable.
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post #10 of 38
Quote:
Originally Posted by VirtualJockey;11732485 
So lower by .25v and bench until I don't have probs in kombuster, and raise .25 after it's stable?

My apologies, just a little confused.

Edit: will Kombuster report errors, or just crash? My mem is 100% stable at 2232 in afterburner (4464) tested with ATiTool for over an hour.
I thought artifacts were a mem prob only.

no i was saying take your stable oc and lower your voltage some. test in kombustor. the way it will crash is just like what games do.
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