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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 17

post #161 of 38704
Quote:
Originally Posted by Denim-187 View Post

Dude your doing that all wrong..... that is not the best way to test stability.
Also i can see your GPU's throttling. You need to enable power tune at least 10% with Furmark.

How do you see this as throttling? I see it at the same clock the whole time - if it was throttling wouldn't it downclock?
post #162 of 38704
Quote:
Originally Posted by tats View Post

How do you see this as throttling? I see it at the same clock the whole time - if it was throttling wouldn't it downclock?

No...not necessarily. It throttles power to the core thus preventing the peak FPS. In his case, instead of 92, he should be getting close to 120-130.

I actually started a thread about this not long ago..
http://www.overclock.net/t/1178944/unlocking-a-mystery-25-on-amd-cards/0_30
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post #163 of 38704
Quote:
Originally Posted by DB006 View Post

Quote:
Originally Posted by DimmyK View Post

Congrats to all who already got the cards... Mine is coming in tomorrow. I'm anxious (in a good sense of this word) - haven't used AMD card in years.
Have question regarding powertune: do I have to enable it when overclocking? I am not planning to touch the voltage at first. To what value? To the max 20%? I want to see how high I can go on default volts.

In the ATI Catalyst Control Center (right click on desktop,top of the dialogue box) go to performance and unlock, then max out the core and memory clocks and +20% voltage, runs absolutely fine
Quote:
Originally Posted by Denim-187 View Post

Quote:
Originally Posted by DB006 View Post

In the ATI Catalyst Control Center (right click on desktop,top of the dialogue box) go to performance and unlock, then max out the core and memory clocks and +20% voltage, runs absolutely fine

Not all cards are stable at this setting..... it might run vantage and complete it, but that doesnt mean its a stable overclock.
U need GPU tool, to test stability properly.
I was able to max the sliders in CCC and complete Vantage and 11 thinking i ws "stable", but this tool proved me wrong.
I then found my 100% stable clock for both my cards, which was a lil under max in CCC @ stock voltage.
Goodluck yooo thumbsupsmiley.png

Follow this guide to correctly overclock your GPU.

Thanks for replies guys, but I think I worded my initial question quite poorly, so the question really is:
do I absolutely have to increase powertune settings (from default 0 to say +20%) when overclocking? I was reading about it and just wanted to confirm: it appears to me that if you leave it at 0, the card will throttle down at some point, because it would not get enough power to work with higher clocks, so it looks like I need to increase it. On the other hand, I don't want to blindly set it to max value (+20%?) without clear understanding why I did that. Can I overclock with powertune slider set to 10%? How do I see if card starts throttling down and I need to add more power via powertune slider? Hopefully this makes more sense than initial question. And I want to leave volts out of this for now, what I said above applies only to powertune settings. As far as I know, you can't even adjust voltage with CCC, right?
post #164 of 38704
Thread Starter 
Quote:
Originally Posted by Denim-187 View Post

Quote:
Originally Posted by tats View Post

How do you see this as throttling? I see it at the same clock the whole time - if it was throttling wouldn't it downclock?

No...not necessarily. It throttles power to the core thus preventing the peak FPS. In his case, instead of 92, he should be getting close to 120-130.

I actually started a thread about this not long ago..
http://www.overclock.net/t/1178944/unlocking-a-mystery-25-on-amd-cards/0_30
That's a nice 2nd owners club you got there. tongue.gif
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post #165 of 38704
Bought two PowerColor cards. I came from a 580 SLI setup and while I am getting higher numbers, with crossfire stuttering in games is insane using 11.12 drivers and makes games such as BF3 and SWTOR seem like they're running at 40fps. Do you recommend anything better?
Edited by Outcasst - 1/10/12 at 7:16am
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post #166 of 38704
Thread Starter 
Quote:
Originally Posted by Outcasst View Post

Bought two PowerColor cards. I came from a 580 SLI setup and while I am getting higher numbers, with crossfire stuttering in games is insane using 11.12 drivers and makes games such as BF3 and SWTOR seem like they're running at 40fps. Do you recommend anything better?
Until AMD addresses this issue, it might be best to run a single card withe the affected games.
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post #167 of 38704
Quote:
Originally Posted by Outcasst View Post

Bought two PowerColor cards. I came from a 580 SLI setup and while I am getting higher numbers, with crossfire stuttering in games is insane using 11.12 drivers and makes games such as BF3 and SWTOR seem like they're running at 40fps. Do you recommend anything better?

I have zero problems whatsoever! Which 11.12 are you running? theres like 3 versions
Use this one
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post #168 of 38704
Those are the ones I am using. Do the 12.1 beta ones support the 7 Series?
Edited by Outcasst - 1/10/12 at 7:36am
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post #169 of 38704
Isn't 12.1 preview and up the drivers that were supposed to be used for the new cards?

Card will be here tomorrow and I have two days off work!
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post #170 of 38704
Thread Starter 
Quote:
Originally Posted by Outcasst View Post

Those are the ones I am using. Do the 12.1 beta ones support the 7 Series?
I think those are the latest beta drivers (officially).
Does the stuttering go away if you didn't run the games in CF mode?
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