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[Official] AMD Radeon HD 6850/6870 Owners Thread - Page 622

post #6211 of 6939
Quote:
Originally Posted by Catscratch View Post

Darn, i can't overclock my card.
950 / 1125 with 1.225v, 20 seconds furmark driver recovery
925 / 1100 with 1.225v, same
900 / 1100 with 1.180v, same
Granted I have the stock heatsink with a 12cm on it but it's not about the heat. At stock settings, after 5 mins of furmark, gpu tops out at 83c with %85 fan speed. All other temp readings are within 3c difference, vrm, etc.
Either it's the worst 6850 or my PSU is dead, funny thou i can overclock my cpu.

Funny that you have 83 on the core... The Barts core doesn't like to go over 70~...
You can ask arround, lots of people with these cards have come to that conclusion, as long as you stay away from 75 you are safe.
So yea your temperature is most likely the issue thumb.gif

Edit: btw, they don't mind being hot on stock settings... for some reason.
But they hate being hot when they are overclocked. Weird but that's what happens with me and some others.
Edited by Tokkan - 12/25/12 at 4:28pm
post #6212 of 6939
Well, i'll have to get the Accelero Twin Turbo II after all. It seems, the default heatsink can't absorb heat quickly enough for 12cm fan to cool. I tried 900 / 1000 @ 1.180v for a last attempt thinking maybe the rams didn't like the speed and %100 fan, it did hold below 80c for a min, then i stopped before it could go higher. For some reason the custom fan table does not work properly.
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Intel Evilnow
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post #6213 of 6939
Quote:
Originally Posted by Catscratch View Post

Well, i'll have to get the Accelero Twin Turbo II after all. It seems, the default heatsink can't absorb heat quickly enough for 12cm fan to cool. I tried 900 / 1000 @ 1.180v for a last attempt thinking maybe the rams didn't like the speed and %100 fan, it did hold below 80c for a min, then i stopped before it could go higher. For some reason the custom fan table does not work properly.

Well your ambient temp must really be hot...
I hope the accelero does help
post #6214 of 6939
Quote:
Originally Posted by Catscratch View Post

Well, i'll have to get the Accelero Twin Turbo II after all. It seems, the default heatsink can't absorb heat quickly enough for 12cm fan to cool. I tried 900 / 1000 @ 1.180v for a last attempt thinking maybe the rams didn't like the speed and %100 fan, it did hold below 80c for a min, then i stopped before it could go higher. For some reason the custom fan table does not work properly.

I would recommend the Accelero Extreme Plus 2, its a little bit on the expensive side $85 but its worth it. The cooler cools the card like a beast and stay's under 50c, very rare now that the GPU will exceed 50c. its worth spending a little more for a better cooler smile.gif
post #6215 of 6939
You got the extreme on a 6850 ? Wow. Any pics ?

I'm stalling because I'll try Thermalright HR03-GT first, it's on a 4850 in a different computer. Plus, 8800 series are closing and I don't wanna spend too much just yet, i might get 8850 biggrin.gif I was always skeptical on gpu overclocking. I used overdrive only on this 6850 for 835/1100. I never overclocked my 4850 or 1950xt biggrin.gif

If I get the glimpse of 8850 also being 53mm mounting holes, I'd get an Accelero in advance biggrin.gif

Btw, the room temp is around 22c.
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Intel Evilnow
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post #6216 of 6939
Well crap. I guess I will be running stock for the moment. RBE simply does not work. Spent all morning bricking/unbricking my card tongue.gif.
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post #6217 of 6939
Is the OP gone or something? Because no one is being added to the club, for what I see.
post #6218 of 6939
Quote:
Originally Posted by vonss View Post

Is the OP gone or something? Because no one is being added to the club, for what I see.
over a year now if im not mistaken lol
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post #6219 of 6939
Quote:
Originally Posted by vonss View Post

Is the OP gone or something? Because no one is being added to the club, for what I see.
I have been here for 2 months and still haven't been added to the list. tongue.gif
post #6220 of 6939
I have a his 6870 ill post a pic and gpu info ...... Anyone know which overclocking tool i can use to unlock voltege? So far i noticed the his i turbows me to tweek voltege but asus site does not,o program all
     
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