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6970 Extremely low performance! - Page 3

post #21 of 47
Porky, you're the only person who is telling him to use both, he shouldn't. You only need one bridge unless you're using trifire or quadfire.

While his chip is going to be a bottleneck, it's not a bottleneck in this situation because his GTX 580 wasn't bottlenecked by it. If it was me, I'd test them in another rig just to be sure that it's not something that could be wrong with your PCI-e slots.
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post #22 of 47
Have you tried changing the clocks on the card back to stock and benching again?.
Edited by Aestylis - 10/11/11 at 3:16pm
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post #23 of 47
Quote:
Originally Posted by Crystal_Castles View Post
Porky, you're the only person who is telling him to use both, he shouldn't. You only need one bridge unless you're using trifire or quadfire.

While his chip is going to be a bottleneck, it's not a bottleneck in this situation because his GTX 580 wasn't bottlenecked by it. If it was me, I'd test them in another rig just to be sure that it's not something that could be wrong with your PCI-e slots.
Yeah this - OP is complaining about poor performance of 1 card anyway, which I can't explain.

You do not need 2 crossfire bridges on 2 cards with modern amd cards. It potentially causes miscommunications which manifest themselves as minor graphical glitches such as texture shimmering.
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post #24 of 47
It's a CPU bot... Just kidding

Have you tried playing in games just to see if it is only in 3D mark that you are getting poor performance? Don't know why it would cause a problem but it might be something to look in to.
    
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post #25 of 47
Quote:
Originally Posted by prescotter View Post
Yea but i mean, on allot of benchmarks you wont get the scores some other people are getting.

Due to the fact your cpu wont use more then +-70% usage on both cards due to cpu bottlenecking.

@dihartnell
Just check your gpu usage while gaming, even you will see it probably.
I have and I dont. When the game needs to its pushes 100% on the GPUs and my little tri core, albeit overclocked isn't stopping me from getting good FPS and running my games at high quality settings.

Personally I think people way over estimate when and how CPU will bottleneck a GPU.
post #26 of 47
looking at your 3dmark result it says your ram is running @533Mhz. If it's your sig rig, there may be something wrong (although I have no clue if 1066 vs 1600 has such an impact on 3mark). Just a guess, because you said you resetted your bios
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post #27 of 47
Quote:
Originally Posted by fluxlite View Post
You do not need 2 crossfire bridges on 2 cards with modern amd cards. It potentially causes miscommunications which manifest themselves as minor graphical glitches such as texture shimmering.
This. I used to use two bridges and was getting random graphical glitches. Removing one bridge solved the problem.
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post #28 of 47
Also try using afterburner to watch GPU usage. Maybe Catalyst isn't letting them run at a hundred for some reason. Sometimes when I have a 2d prgram or youtube open i get stuck at 2d clocks.
    
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post #29 of 47
Quote:
Originally Posted by Metalbeard View Post
This. I used to use two bridges and was getting random graphical glitches. Removing one bridge solved the problem.
I bet he isn't using a bridge atm. If he is, it may be the issue, I dont know how well A SINGLE CARD works when BRIDGED TO ITSELF. It may work even worse when bridging it to itself WITH 2 BRIDGES.
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post #30 of 47
Quote:
Originally Posted by daman246 View Post
Cpu bottleneck a Amd Chip is not good enough to run Cf 6970 at 100%
ironic
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