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post #441 of 644
Every card is different but in general, it's hard to damage your card without changing the voltage. You just need to be stress testing your overclock and watch the temperatures. And the reason I say it's hard to damage your card without changing the voltage is because generally you need to increase the voltage to get higher clocks and it increases the temperatures.
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post #442 of 644
hi everyone

wasn't sure if my problem warranted a new thread, so i figured i could post here instead.

I got my Gigabyte Radeon 6950 2GB card last week. After debating for ages, i decided to take a risk and unlocked my shaders fine with the stock bios, using RBE.


I then decided to try my luck to see if i could reach the 6970 stock clocks of 880/1375. So i enabled powertune to +20% in CCC, enabled unofficialoverclocking in Afterburner with the disclaimer text etc.

I ran afterburner and found that i could set the clocks to 880/1375 on stock volts. However, running the Kmark normal benchmark on MSI Kombustor would crash the driver and then the driver would recover.

I was able to get vantage, unigine, 3d mark 11, crysis, AVP running without any problems.

But something weird happened. On vantage, on stock clocks (800/1250), my gpu score was around 20800. But when I OCd it to 880/1375, my gpu scores dropped down to 20300.

should i raise my volts to 1.175 to see if this helps? Or is something else going on?

I have a custom fan profile set to run at 60% on load. My card idles at 40 Degrees Celcius and under load, it hovers around 66 Degrees, which isn't too hot I think..

Any tips would be much appreciated.

For now, I have reverted back to the 800/1250 configuration.

Thanks y'all smile.gif
    
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post #443 of 644
Quote:
Originally Posted by colaxs;13079837 
hi everyone

wasn't sure if my problem warranted a new thread, so i figured i could post here instead.

I got my Gigabyte Radeon 6950 2GB card last week. After debating for ages, i decided to take a risk and unlocked my shaders fine with the stock bios, using RBE.


I then decided to try my luck to see if i could reach the 6970 stock clocks of 880/1375. So i enabled powertune to +20% in CCC, enabled unofficialoverclocking in Afterburner with the disclaimer text etc.

I ran afterburner and found that i could set the clocks to 880/1375 on stock volts. However, running the Kmark normal benchmark on MSI Kombustor would crash the driver and then the driver would recover.

I was able to get vantage, unigine, 3d mark 11, crysis, AVP running without any problems.

But something weird happened. On vantage, on stock clocks (800/1250), my gpu score was around 20800. But when I OCd it to 880/1375, my gpu scores dropped down to 20300.

should i raise my volts to 1.175 to see if this helps? Or is something else going on?

I have a custom fan profile set to run at 60% on load. My card idles at 40 Degrees Celcius and under load, it hovers around 66 Degrees, which isn't too hot I think..

Any tips would be much appreciated.

For now, I have reverted back to the 800/1250 configuration.

Thanks y'all smile.gif

I have the same card and have downloaded both MSI AB and Kom and haven't messed with Kom yet. I think you need Kom to use AB but not necessary to use it. (Correct me if I'm wrong, someone)

Also, I don't see why you would care so much about an outdated benchmark program. If the other benchies are consistent why even worry about Vantage?
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post #444 of 644
Quote:
Originally Posted by TexasRho83;13082767 
I have the same card and have downloaded both MSI AB and Kom and haven't messed with Kom yet. I think you need Kom to use AB but not necessary to use it. (Correct me if I'm wrong, someone)

Also, I don't see why you would care so much about an outdated benchmark program. If the other benchies are consistent why even worry about Vantage?

You don't have to have Kombuster installed. AFAIK Kombuster is just for testing stability.
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post #445 of 644
Quote:
Originally Posted by hajabooja;13089823 
You don't have to have Kombuster installed. AFAIK Kombuster is just for testing stability.

I second this. Afterburner works for me without Kombuster. Unless they installed it in the background and I didn't realize it.
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post #446 of 644
Seems like from this and other threads, overclocking the 6950 or flashing the bios is not worth it. really doesnt increase performance and you have a real risk of killing th card with artifacts that wont go away. I am kind of pissed right now because the guy who build my PC at Frys said this was easy and worked well and to save the 80 bucks on the 6970. the 70 dollars means little to me really and I regret not getting it. Now I may get another 6950 in a couple of month for crossfire so that could hold me for some time, and even run BF3 just fine when it comes out.
Quote:
Originally Posted by colaxs;13079837 
hi everyone

wasn't sure if my problem warranted a new thread, so i figured i could post here instead.

I got my Gigabyte Radeon 6950 2GB card last week. After debating for ages, i decided to take a risk and unlocked my shaders fine with the stock bios, using RBE.


I then decided to try my luck to see if i could reach the 6970 stock clocks of 880/1375. So i enabled powertune to +20% in CCC, enabled unofficialoverclocking in Afterburner with the disclaimer text etc.

I ran afterburner and found that i could set the clocks to 880/1375 on stock volts. However, running the Kmark normal benchmark on MSI Kombustor would crash the driver and then the driver would recover.

I was able to get vantage, unigine, 3d mark 11, crysis, AVP running without any problems.

But something weird happened. On vantage, on stock clocks (800/1250), my gpu score was around 20800. But when I OCd it to 880/1375, my gpu scores dropped down to 20300.

should i raise my volts to 1.175 to see if this helps? Or is something else going on?

I have a custom fan profile set to run at 60% on load. My card idles at 40 Degrees Celcius and under load, it hovers around 66 Degrees, which isn't too hot I think..

Any tips would be much appreciated.

For now, I have reverted back to the 800/1250 configuration.

Thanks y'all smile.gif
post #447 of 644
Can anyone tell me what Shader Complexity I should be using when using OCCT to test? At the moment I left it to default settings 0.
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post #448 of 644
i was doing some tests with overclocking the card but i can only use occt for artifact scanning, the gpu-tool doesnt work:/

so the core seems to behave normal but when i started increasing the memory clocks it never gave artifacts and i am wondering if it doesnt artifact with to high memclocks or if i just have some golden ram or so...

the stock mem value is 1150 and i increased it to 1250 and it still didnt artifact. i didnt go further and went back to stock because im not sure if it will hurt the card. so is it normal that the mem goes that high? and should occt gpu test give artifacts when the mem clock is to high or how does that show up?

edit: oh forgot to ask if anyone knows what all these temperatures are:
35887b8.jpg
Edited by kromar - 4/16/11 at 11:17am
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post #449 of 644
With OCCT are you running with error check enabled?

I'm still in the overclocking process and as of yet just finished getting my stable core clock. Whats happened is I had no artifacting with OCCT but when I found my final overclock limit I got errors after the first few minutes. I dropped down the clocks then ran again for longer now since I found my limits. This time everything was good until the 40 minute mark which it then found errors again. So after dropping down again I was finally good with no errors.

This was with error check test. I had no artifacts whatsoever.

I've just got started with my memory so I can't comment but you should also look for stabilty in fps so if your seeing a unusual drop in frames than before that can be a sign.

Furthermore you probably do this anyway but I recommend you do more than just a stress test. I do OCCT, Kombustor, run benchmarks like 3dmark, unigine & play my favourite/demanding games to be sure & comfortable.

If you download Everest Ultimate or Aida64(same stuff) they seem to give a name to the different temps. For my 5750 comparing it to gpuz readings the gpu temp #1 seems to be the core labeled as "dispI0". GPU temp#2 the memory and GPU temp #3 is the shader.

5750sensors.png
Edited by manny123 - 4/18/11 at 9:51am
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post #450 of 644
turns out that if the mem is unstable i get display distortion after some time:O i usially test with crysis after the occt artifact testing to see if i get any problems there. with a 1000mhz core and 1240mhz mem i got about 5fps more in the crysis bench. (stock 970/1150)
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