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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 424

post #4231 of 38721
So I just OC'ed my 7950 to 1050/1500 in Overdrive of CCC, and didn't put up my voltage. I looked around and some OC benchmarks are at this same with stock voltage. Should I increase the voltage anyway, or just see how it performs?

EDIT: Haha, 20 seconds in just browsing OCN my screen went black and Windows said the AMD driver failed but was recovered. Well, I quickly put it back to defaults in CCC.
Edited by Invisible - 2/18/12 at 6:59am
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post #4232 of 38721
Quote:
Originally Posted by Invisible View Post

So I just OC'ed my 7950 to 1050/1500 in Overdrive of CCC, and didn't put up my voltage. I looked around and some OC benchmarks are at this same with stock voltage. Should I increase the voltage anyway, or just see how it performs?
EDIT: Haha, 20 seconds in just browsing OCN my screen went black and Windows said the AMD driver failed but was recovered. Well, I quickly put it back to defaults in CCC.

well ofc, you have to stability test it to see if the OC is working okay thumb.gif

I use Unigine heaven 2.5 and BF3
post #4233 of 38721
Quote:
Originally Posted by Denim-187 View Post

Wow are you guys serious? All you had to do was re-install AB wth.gif

I think seeing all that kind of stuff is why so many Nvidia fanboys still smacktalk amd drivers lol
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post #4234 of 38721
Quote:
Originally Posted by Janaap View Post

Yes sir, no coil whine whatsoever.

Thanks... I ask this because there is a theory that ALL cards produce coil whine up to a level. Sometimes it is easily identified while other times you have to put your ear 2 cm from the card to hear it!

Waiting also for inputs from others...
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post #4235 of 38721
Quote:
Originally Posted by Balsagna View Post

Or you can just edit the profile...... and not have to do anything like that.

If I use the 2D profile in GPU-Tweak and watch flash videos the clockstate goes up to 3D. (Yes the hardwareacceleration is disabeld)
The 3D profile can not be edit lower than 725/4700MHZ.
So what profile do you mean?
post #4236 of 38721
Quote:
Originally Posted by ElGreco View Post

Thanks... I ask this because there is a theory that ALL cards produce coil whine up to a level. Sometimes it is easily identified while other times you have to put your ear 2 cm from the card to hear it!
Waiting also for inputs from others...

I just put a EK block on my 7970 yesterday and I can here some coil whine on my card now that it's silent. My card is running 1125/1500 1.174v, but under full load (Furmark) , you can here it now. I never could hear it before with the stock cooler even running 20% fan. It's very faint but it's there.
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post #4237 of 38721
in my opinion best applications to test OC is BF3-Unigine Heaven 2.5-Crysis 2 DX 11+ high tesselation,if those things doesn't show any error,crash,black,screen,drivers stopped working then your clock is OK...**** FurMark and things...u can use it just to check your final edge in overclocking...
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post #4238 of 38721
Quote:
Originally Posted by tsm106 View Post

You DO NOT need to touch ULPS on a single card setup.

I am 100% sure that ULPS caused unstable overclock on my SINGLE CARD setup.
Played games almost 2 weeks on 1200/1700 with ULPS disabled. Everything was perfectly stable.
After upgrading drivers yesterday I forgot to disable ULPS and problems at desktop returns (after idle time).
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post #4239 of 38721
Quote:
Originally Posted by StrayderGame View Post

in my opinion best applications to test OC is BF3-Unigine Heaven 2.5-Crysis 2 DX 11+ high tesselation,if those things doesn't show any error,crash,black,screen,drivers stopped working then your clock is OK...**** FurMark and things...u can use it just to check your final edge in overclocking...

I am playing Crysis 2 Dx11 high res textures on Extreme settings in Eyefinity and it's great, about 40-55fps avg and smooth as hell. I used furmark just to see the load temp with this new water block. I'm raising my overclock now and running a few vantage runs. My scores aren't the best as having a 2500k @ 5ghz. Be way higher if I had my 3930k from work here at home. I don't have BF3 yet, but was thinking of getting it soon. None of my friends want to play it for some reason mad.gif .

Here's what I've gotten the card up to now and still going. I just had to raise the volts up too 1.225v for running 1250core and 1600mem
348


Question. What is ULPS? I don't think I've done anything with that??
Edited by Hambone07si - 2/18/12 at 9:41am
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post #4240 of 38721
I think I'm doing something wrong, haha. Cause when I OC'ed, I hit a huge performance...tank. Like I dropped to about 34fps in BF3 and about 20fps less in Heaven 2.5. I followed this thing on Guru3D and put it up 1020/1575 and then 20% power, and I tanked hard.

http://www.guru3d.com/article/radeon-hd-7950-overclock-guide/2

Anything I'm missing?
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