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[Official] AMD Radeon HD 6850/6870 Owners Thread - Page 261

post #2601 of 6939
So far I found that my stable core speed is 925 with a 30 minutes GPUTool test.

But my memory OC is freaking me out a bit. So far I've hit 1200 stable for 10 minutes and I'm concerned about going higher even though temps have still been at around 70C.

Does this seem unusual to you guys?

Edit: Stock voltage. Won't unlock.
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post #2602 of 6939
Quote:
Originally Posted by Krusher33 View Post
So far I found that my stable core speed is 925 with a 30 minutes GPUTool test.

But my memory OC is freaking me out a bit. So far I've hit 1200 stable for 10 minutes and I'm concerned about going higher even though temps have still been at around 70C.

Does this seem unusual to you guys?

Edit: Stock voltage. Won't unlock.
30 min' is a loooot of time for the OCCT gpu stress test
10' should be enough, just do lots of 3dmarks and play gpu intensive games (I'd suggest to do some overvolt too since we have such an excellent vr chip, however it's your choise) to get rs
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post #2603 of 6939
I have 6870 and should I download 11.1 drivers or 11.1a?
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post #2604 of 6939
Quote:
Originally Posted by Liranan View Post
You showed me that link before I bought my VF3000A and I found I had nothing to sand down or remove. The cooler fitted perfectly and there was no obstruction. I don't know why you had to, as all reference coolers are one and the same.

I will say this, the Zalman is not the best. The best is the Shaman, but that's also more expensive and also quite a bit bigger. I went with the cheaper path and got the Zalman, my temperature has dropped by 20C, so, I'm very happy.
If you say so
I know a guy who damaged his 6870, just trying to resolve the obstruction problem with an electric tool (he was trying to sand down a bit of the backplate directly on the videocard) it was such a misfortune
But (as I said before) just controll yourself how well the cooler base fits to the core (lucky you)

I also read a lot of the Thermalright Shaman (very good stuff) however simply it won't work to me since is too big (I don't have a 4 slot vga area if I'm planning to get another one for 6870 crossfirex). Ciao
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post #2605 of 6939
Quote:
Originally Posted by WIGILOCO View Post
I have 6870 and should I download 11.1 drivers or 11.1a?
My oppinion is to get te 11.1a hotfix (allready running on my rig) since are especially made for the 6800 and 6900 series only and windows 7
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post #2606 of 6939
Quote:
Originally Posted by arrow0309 View Post
30 min' is a loooot of time for the OCCT gpu stress test
I know. I wanted to do only 15 minutes worth but was doing homework and completely forgot.
Quote:
Originally Posted by arrow0309 View Post
10' should be enough, just do lots of 3dmarks and play gpu intensive games (I'd suggest to do some overvolt too since we have such an excellent vr chip, however it's your choise) to get rs
Is there a trick or guide to it? I checked the "unlock voltage control" option in afterburner and it's still locked.

And to answer my own question I checked other overclocks at HWBot. There's one OC'd to 1275 memory on air so Imma keep pushing.
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post #2607 of 6939
I installed 11.1a Now I run 3DMark11 and dirt 2 bench for results, maybe some more.
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post #2608 of 6939
This may not be 69xx club, but quick question(s).

Will it have a bottleneck with lower clocked CPU's, say around 3.1GHz?

And is the TIM of the Sapphire 6950 decent, or will it be worth changing it with AS5?
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post #2609 of 6939
Quote:
Originally Posted by Krusher33 View Post
I know. I wanted to do only 15 minutes worth but was doing homework and completely forgot.


Is there a trick or guide to it? I checked the "unlock voltage control" option in afterburner and it's still locked.

And to answer my own question I checked other overclocks at HWBot. There's one OC'd to 1275 memory on air so Imma keep pushing.
Look, for the AB simply download the latest beta (2.1.0 beta 6) here:
http://downloads.guru3d.com/Afterbur...load-2604.html

You should also enable (& modify the cfg. file) voices (for a full oc and ov) like that:
http://www.hwupgrade.it/forum/showpo...postcount=4809

About the mem speed it's just a matter of luck
Hope I was helpfull
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post #2610 of 6939
Quote:
Originally Posted by WIGILOCO View Post
I installed 11.1a Now I run 3DMark11 and dirt 2 bench for results, maybe some more.
Yeap! Here's my first 20k record on Vantage @11.1a

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