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post #11791 of 38701
Thanks for the help so far. I now have a new issue. My screen will flash and then the overclock will revert the default 3D clocks and not my overclock. How can i solve this?
This is not due to temps or instability. Cheers.
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post #11792 of 38701
Quote:
Originally Posted by BradleyW View Post

Thanks for the help so far. I now have a new issue. My screen will flash and then the overclock will revert the default 3D clocks and not my overclock. How can i solve this?
This is not due to temps or instability. Cheers.

This happened to me once and I fixed it with restarting the afterburner... to be honest this software is preety buggy but when it works it's really nice tongue.gif
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post #11793 of 38701
What are some good stress testers? With my 6870s I used Furmark benchmark... it would run for 1 minute and if it had any artifacts or it crashed, I backed off a bit and then would run 3dMarks for 3 turns. Same with these?
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post #11794 of 38701
Quote:
Originally Posted by Derko1 View Post

What are some good stress testers? With my 6870s I used Furmark benchmark... it would run for 1 minute and if it had any artifacts or it crashed, I backed off a bit and then would run 3dMarks for 3 turns. Same with these?

I don't use furmark it's just not realistic and abuses the card way too much.... I use the Crysis Benchmarking Tool for both Crysis 1 and 2 and loop up to 10 runs. So far this found all my instabilities and I'm crash free biggrin.gif
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post #11795 of 38701
Quote:
Originally Posted by Derko1 View Post

What are some good stress testers? With my 6870s I used Furmark benchmark... it would run for 1 minute and if it had any artifacts or it crashed, I backed off a bit and then would run 3dMarks for 3 turns. Same with these?

my vote is on OCCT gpu tester, set it to error check and run it for at least 2 hours for stability as nobody games for 1 minute tongue.gif
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post #11796 of 38701
I used to use OCCT, but it doesn't support crossfire, so only 1 GPU gets tested. Maybe there's a newer version, I will check it out.

So I just tried 1175/1650 and got a 116 BSOD for the ATI Driver... rolleyes.gif

So I will up the voltage.. how much should I go up at time?
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post #11797 of 38701
Quote:
Originally Posted by Grobinov View Post

This happened to me once and I fixed it with restarting the afterburner... to be honest this software is preety buggy but when it works it's really nice tongue.gif
Thanks mate, i just disabled overdrive. Now my 2D clocks work and i have no bugs.
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post #11798 of 38701
I just downloaded the latest version of OCCT and no matter what clock I have... or what settings I am using, it crashes the driver every time I try to run the 3d test... what gives?

Edit: So it happens only when I use dx10 mode, on dx9 it's running.
Edited by Derko1 - 6/9/12 at 11:19am
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post #11799 of 38701
Right, looks like 1165Mhz is the limit on my core.
What is the average voltage for 1200Mhz+ and what is the max safe voltage for air cooling/long term use.
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post #11800 of 38701
Quote:
Originally Posted by BradleyW View Post

Right, looks like 1165Mhz is the limit on my core.
What is the average voltage for 1200Mhz+ and what is the max safe voltage for air cooling/long term use.

Its different for all cards really in my case I can get to 1180 core at 1.234V but after that my heat tolerance goes way down. At 1200 core I start to artifact at 62°C so its impossible to reach that clock for me on air. It seems that some card really become sensitive to heat at higher clocks and volts.

I suggest to slowly upping the volts and clocks and see where it leads you. Some cards are stellar but if you are unlucky like me you won't be seeing 1200 mhz on air.

Good luck mate biggrin.gif

Oh yh you can preety much go up to 1.3V if you can keep the heat down or if you dont have a heat sensitive card - as I said before it can be a hit or miss tongue.gif
Edited by Grobinov - 6/9/12 at 11:31am
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