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post #461 of 1059
Hey guys, would like to join this club, I'll upload pics tomorrow. But I have one question. How do you test for overclocking stability? I have a GTX 580P (I don't overclock it that much due to not so great case conditions (need to switch some fans around)) and I overclock it to about 900-925 Mhz. I see a 5-13 FPS increase in games but I never know if it's stable or not. I am running on a 4 rail 750 watt PSU, so in terms of power I should be good.

P.S. I use the Asus overclocking utility.
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post #462 of 1059
I run 3Dmark11 since it's a more realistic load than OCCT/Furmark, usually if it's unstable it'll crash within the first graphics test. If it passes that then I just game and watch for artifacts and/or crashes.
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post #463 of 1059
Quote:
Originally Posted by MMJA View Post
I run 3Dmark11 since it's a more realistic load than OCCT/Furmark, usually if it's unstable it'll crash within the first graphics test. If it passes that then I just game and watch for artifacts and/or crashes.
Ah, simple enough, thanks man.
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post #464 of 1059
Quote:
Originally Posted by Corgon View Post
Hey guys, would like to join this club, I'll upload pics tomorrow. But I have one question. How do you test for overclocking stability? I have a GTX 580P (I don't overclock it that much due to not so great case conditions (need to switch some fans around)) and I overclock it to about 900-925 Mhz. I see a 5-13 FPS increase in games but I never know if it's stable or not. I am running on a 4 rail 750 watt PSU, so in terms of power I should be good.

P.S. I use the Asus overclocking utility.
I tend to start at oem spec, run a Heaven benchmark, and I record the score.

I will then up the core clock and rerun the benchmark. If I notice a score increase I'll rerun it with an even higher clock speed.

Eventually, you'll start getting artifacts on the screen (black lines, some polys turn funny colors etc). At that point I would turn the voltage up a tad and rerun it. If the artifcats still appear, turn up the voltage a tad more and rerun it.

keep working back and forth with the voltage and cork clock until you get a comfortable speed and FPS rating. If you get to a point where you're upping the core and your benchmark score stays the same or declines - back off a bit you've reached the max.


This is how I do it, if anyone finds incorrectness in this post let me know.
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post #465 of 1059
Ok, here is my entry. I have an Asus Matrix GTX 580 Platinum.

My GPU-Z validation can be found here http://www.techpowerup.com/gpuz/8y8q/





More pictures can be found here.
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post #466 of 1059
Quote:
Originally Posted by MMJA View Post
I run 3Dmark11 since it's a more realistic load than OCCT/Furmark, usually if it's unstable it'll crash within the first graphics test. If it passes that then I just game and watch for artifacts and/or crashes.

So basically what we're talking about is OCCT GPU test with error check on, which checks for artifacts, is a bad way of testing the 'stability' for your OC setting? I just ran 950MHz core on my GPU @ 1.055v, which on OCCT I get artifacts, in heaven2.5 I don't get any errors... Temp difference is 60C in heaven and 75C in OCCT. So maybe you could get by with just in game experience looking for artifacts vs the actual error check on OCCT? I've always had questions about this...
post #467 of 1059
I'm not saying it's bad by all means, I'm just saying since I do have a reference PCB GTX 570 I'm playing it safe so I don't kill that card. Those people with non reference GTX 570s or other cards can OCCT/Furmark all they like.
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post #468 of 1059
with OCCT i could not get past 875 without any artifacts and temps pushing 90c+ but with Kombuster i get under 78c and am at 950. if you are planning on folding then i would say use occt with error check
    
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post #469 of 1059
Do you think you can update the list? I want to put that sweet banner in my sig XD
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post #470 of 1059
Thread Starter 
Quote:
Originally Posted by corgon View Post
do you think you can update the list? I want to put that sweet banner in my sig xd
you're in
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