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post #1411 of 4103
Quote:
Originally Posted by krazyatom View Post
So what's safe to run with air? 950/1300?
Should be fine. I think 980/1330 @ 1.190 or 1.195 is good, but move the OC up first, then when or if it locks up, move up the voltage. You need to find the lower end voltage limit that it can run at.
     
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post #1412 of 4103
Quote:
Originally Posted by krazyatom View Post
So what's safe to run with air? 950/1300?
You will have to watch your temp's to see what your max on air. Anything over the 880/1250 the temp's really start to jump up fast, Unless your fine with running your fan @50% +
post #1413 of 4103
Quote:
Originally Posted by ezveedub View Post
Should be fine. I think 980/1330 @ 1.190 or 1.195 is good, but move the OC up first, then when or if it locks up, move up the voltage. You need to find the lower end voltage limit that it can run at.
Hmm... it's not fair you got water block! lol
anyway, should I do 100% air when testing my OC?
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post #1414 of 4103
Quote:
Originally Posted by krazyatom View Post
My computer is currently completed naked, so those buzzing is very noticeable lol.
Just as a FYI, a lot of cards buzz when loaded, so its not specific to the 6990. My brother-in-laws GTX470s squealed when running Furmark or heavy loaded games or apps. I've noticed Unigine Heaven bench makes any card I use make noise when exiting the app for some reason.
     
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post #1415 of 4103
Quote:
Originally Posted by krazyatom View Post
Hmm... it's not fair you got water block! lol
anyway, should I do 100% air when testing my OC?
I always test my cards on air and observe temps and performance BEFORE I add waterblocks. The GPU and VRegs are what you need to watch the temps on. VRegs more so with waterblocks, because they get the hottest when OCing with waterblocks.

You can set a fan profile to be more aggressive at lower temps instead of 100% fan speed. It's gonna be loud at 100%
     
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post #1416 of 4103
I scored 1447 from kombuster (kmark benchmark) preset: etreme with 900/1300.
Should I try 1000/1300?

Btw, didn't hear any buzzing when I was running this. Weird.
Edited by krazyatom - 4/29/11 at 3:11pm
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post #1417 of 4103
Quote:
Originally Posted by krazyatom View Post
I scored 1447 from kombuster (kmark benchmark) preset: etreme with 900/1300.
Should I try 1000/1300?

Btw, didn't hear any buzzing when I was running this. Weird.
Work your way up slowly, Don't just go from 900 to 1000
post #1418 of 4103
Quote:
Originally Posted by HiLuckyB View Post
Work your way up slowly, Don't just go from 900 to 1000
ok, 950 lol
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post #1419 of 4103
Quote:
Originally Posted by krazyatom View Post
I scored 1447 from kombuster (kmark benchmark) preset: etreme with 900/1300.
Should I try 1000/1300?

Btw, didn't hear any buzzing when I was running this. Weird.
Kumbustor? I don't think it loads both GPUs last time I tried it. Furmark will if you have the CAP files loaded. Plus those apps only load the card to observe temps. You need to run Heaven or 3Dmark11 to get solid OC performance results under different 3D effects. Turn on extreme Tessellation setting in Heaven with all settings maxed and watch your card choke, LOL
     
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post #1420 of 4103
Is my bios2 switch working right? GPU-Z recognizes the new 880Mhz, but CCC and Afterburner says 830. Also, my Unigine score only went from 1464 to 1472, and min. fps of 22.8 to 19.1, avg. fps was the same.

So when I startup my computer right now, gpu-z shows 880, 880. I then use CCC, which shows 830, 830 (or should I use AB) to overclock to about 920. gpu-z shows 920, 880.
Edited by MusicalPulse - 4/29/11 at 6:02pm
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