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post #11 of 21
3DMarks and game benchmarks will test it for stability, while GPUTool, Furmark, OCCT, etc...will test for artifacting errors and max temps
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post #12 of 21
Thread Starter 
ok, I have EVGA OC Scanner and Furmark installed. I will use those to test for errors, artifacts and temps.

I am not installing 3DMark11 and 3DMarkVantage to test for stability.

Will all of that work well? Is there any specific order I need to run the tests at?

EDIT: Also, what resolutions do I want to run these tests at? And do I run them all fullscreeen or windowed?
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post #13 of 21
I personally use EVGA OC Scanner. Just make sure you go to settings and uncheck the gpu load limiter so it uses 100% of your gpu. I use it in conjunction with MSI Afterburner to do the actual overclocking and raising voltages instead on evga precision because I like to set my own fan profile.

I run it for 10 mins and then up the core clock in by 20 mhz, run for 10 mins, up the core clock by 20mhz, until it is unstable. If you do not want to up voltage then at this point I would back down 10mhz or as much as you have to in order to run OC Scanner for 2 hours to make sure it is stable. Then run 3DMark11, heaven benchmark, or game for awhile to make sure it is OC stable.

Edit: Run at your max resolution or full screen as errors should pop up faster that way. No order you HAVE to run things in but I usually just use OC Scanner until I find my max OC and then game test. You might be game stable and then run OC Scanner and get a crapload of artifacts.
Edited by CountChoculitis - 2/20/11 at 7:56pm
    
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post #14 of 21
Thread Starter 
ok, now when I am upping the clocks. Do I want to up the core and shader linked?(the shader is always 2x the core) Or do I want to up every clock on its own?

and what resolutions do I want to run all of these tests on? Fullscreen?
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post #15 of 21
Quote:
Originally Posted by mwl5apv View Post
ok, now when I am upping the clocks. Do I want to up the core and shader linked?(the shader is always 2x the core) Or do I want to up every clock on its own?

and what resolutions do I want to run all of these tests on? Fullscreen?
Im pretty sure that the core and shader are linked on fermi cards and can not be unlinked.

Try to increase the core clock a "strap" at a time. Leave the memory clock alone for a while and once your core / shader clocks are stable, then have a play with the mem clock.

I usually test at the resolution that I game at... that way I know its going to work in-game and I wont have any surprises.

Quote:
Originally Posted by kromar View Post
thanks a lot for the info, i will give that a try
Your welcome... happy overclocking
post #16 of 21
Thread Starter 
ok, I have evga precision to oc. Furmark and evga oc scanner for testing for errors, temps, and artifacts. And I have 3dMark11 for stability testing and benchmarks.

Now will I want to do either heaven or crysis benchmarks for testing as well? If so which one of the two?



Also, yes I can unlink the core and shader with precision. Is it better to OC with the linked or unlinked?
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post #17 of 21
Quote:
Originally Posted by mwl5apv View Post
ok, I have evga precision to oc. Furmark and evga oc scanner for testing for errors, temps, and artifacts. And I have 3dMark11 for stability testing and benchmarks.

Now will I want to do either heaven or crysis benchmarks for testing as well? If so which one of the two?

Also, yes I can unlink the core and shader with precision. Is it better to OC with the linked or unlinked?
You can run either of the benchmarks, in any order... its not critical.

I guess you could start raising the core first to the desired point and then check for stability. If achieved, start raising the shaders... repeat.

You can raise the volts too to achieve higher clocks but watch your temps.

Since my core and shaders are linked - I do linked
post #18 of 21
Thread Starter 
ok thanks alot. Does anyone know why OCCT was stopped by my internet security? Or what it was installing "secretly"? Did I download a bugged copy of it?


EDIT: and how good is msi kombuster compared to the others? Theres so many choices I dont know what to go with.
Edited by mwl5apv - 2/21/11 at 8:57pm
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post #19 of 21
Dude, you have an evga card, so just use evga OC scanner. OC the core first (no, you cannot unlink your shader, it *must* be at 2x core clock on Fermi cards) to the highest you can get it. Do like a 10 min run each time. Once you have the core/shader OC'd, then see what you can add on top of that with the memory.

However it is true that any stress test you run will not test your card the exact same way that every game in the world might. So if you start gaming and are getting crashes/artifacts/system freezes then it just means your OC isn't quite stable, and you need to lower it a bit. It's not a big deal to get things 100% right the first time, bro.

Personally I don't even bother w/stress tests anymore when OC'ing. All I care about is whether games work okay.
    
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post #20 of 21
You can unlink the core and shader, because Precision and Afterburner do not retain a 1:2 core and shader ratio when upping the core.
Just make sure the core is equal to or half the speed of the shader.

I'd like to throw in my recommendation for using MSI Afterburner instead of EVGA Precision for OCing your card.
I've used EVGA Precision up until 2 days ago and loved it until making the switch.
The ability to have a custom fan profile with MSI Afterburner is awesome.
Being able to change your voltage is cool too, but I haven't used that yet.

As for stress testing, I'll usually use ATItool for on-the-fly checking while slowly increasing my OC, and then when I have everything where I want it at I run OCCT GPU test and maybe MSI Kombustor if I'm feeling bold.
After that your best stress testing is gaming!
Edited by VanillaCena - 2/21/11 at 11:01pm
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