eckosof

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Using Ati tool 0.26 I've overclocked my 8800 to 720.43 Core and 1052 (2104) Memory. How do i use the Scan for Artifacts tool?
What do i look for? What do i look for? How long do i test for? I came up with these numbers here http://www.tweaktown.com/articles/1237/2/nvidia_g92_overclocked_gt_vs_gts_512/index.html . Tested playing Battlefield 2142 on light settings. Didnt crash or cause 3d errors. Any suggestions are welcome, I'm fairly new to overclocking on the 8800.

Thank you in advance.
 

eckosof

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even on stock settings im getting errors.

2008-07-07 05:43:42 I Clocks level 2 set to: 670.00 / 972.00
2008-07-07 05:43:45 I Scan for Artifacts started... Core: 670.00 MHz Memory: 972.00 MHz
2008-07-07 05:43:48 I Artifacts detected after 00:03.09. 2 pixels don't match.
2008-07-07 05:43:48 I Artifacts detected after 00:03.10. 2 pixels don't match.
2008-07-07 05:43:48 I Artifacts detected after 00:03.10. 2 pixels don't match.

And Continues.....
 
Personally, I like to use Rivatuner for Nvidia cards.
However, it is totally whatever you prefer.
You should be able to go as high as 775mhz on the core clock without problems or worries. The memory at 1052 is pushing it, your memory won't overclock nearly as well as the core speed. If you start having problems, lower the memory clock. Even put it back to stock speed, and just raise the core. I can run my core at 800 mhz with the memory at stock speed, and have no heating or other issues. At around 835 it starts showing some artifacting.
Don't worry, when you see the artifacts and images on the screen, you will know what it is and you will know if you have gone too far.
 

eckosof

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now my mind is confused, i was able to get the core to 690 with no problems, then i went to 700 with artifacts, lowered core to 690, artifacts, the back to stock with more artifacts. I think im going to have to get a expert involved.
 

dagger

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Do you actually see the artifacts? If not, it doesn't matter. As long as it's stable, it's good. Stress for stability.
http://www.ozone3d.net/benchmarks/fur/

As for memory oc, it doesn't add much to overall performance, and cause more artifacting/instability than it's worth. Leave it near stock and just oc the core. Keep core and shaders clock linked.

Settings and results from a modest oc:
screenshot001.jpg

 
Yeah, make sure you are not confusing the shader clock with the memory clock.
I have seen some people do that. As dagger said, keep the core and shader clock linked. Try just overclocking the core/shader clocks together with the memory clock set at stock.
 

eckosof

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As far as seeing the artifacts, i see yellow pixels appear when it does see them. usually the amount of how many it said didnt match. After ensuring everything is on stock settings and scanning for artifacts it finds them within 2 seconds.
 

eckosof

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nevermind i guess i thought forceware drivers were different than the drivers i would get from the nvidia site.
 

someguy69

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I RUN MY 8800 GTS 512 at 800 core 1900 shader clock and 1200 memory and it runs fine, i think it may be to do with my card being the MSI oc version so maybe it cools better, i am wondering why jitpublisher said to keep core clocks linked, does it help?
 

dagger

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That's strange. Maybe you pushed it too high ocing and it's hitting errors? Or not enough power? :p
 

akistzortzis

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The way I understand it , at least with RivaTuner is that you need to OC your card, may be even find correct fan settings and then run an application every time you boot into windows - ie those changes are not permanent.

This results in problems, I tried Nvidia's own tuner application - could not get it to do anything to the fan and the way it handles "profiles" it was a joke. So I tried rivatuner but then I realised it needs admin rights else it will not work when you log into Windows.

Any ideas on how to make those changes more permanent so we do not need to fiddle with those applications all the time?