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Help with overclocking 3x Radeon 6990 - Page 2

post #11 of 34
Quote:
Originally Posted by Poisoner;15325513 
You cannot Crossfire three 6990s.

You cannot read.
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post #12 of 34
Quote:
Originally Posted by amputate;15325759 
exactly what I was thinking...
I don't even know how you would be able to connect them redface.gif

He doesn't need crossfire. Its 3D work, it will spread the load across selected cores itself.

OP, I am pretty certain that a monitor needs to be plugged into each card for them to "activate", you can use dummy plugs to do this (google "VGA dummy plug").
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post #13 of 34
He never said they were crossfired, and you don't need them to be to use them to renderfarm.
post #14 of 34
Can't crossfire three dual-GPU cards....

Couldn't power three dual GPU cards with a "cheap" AMD quad core even if you could...

images.jpg


In the event he's serious, he just needs to drop-down on the OC utility and select the next card.
post #15 of 34
Quote:
Originally Posted by amputate;15325759 
exactly what I was thinking...
I don't even know how you would be able to connect them redface.gif

I don't see WHERE the OP said anything about crossfire, just overclocking gpus. Look up a render farm, or folding farm, or the Fastra II for more info.

That said OP, I wonder why MSI AB isn't working. I didn't see in your post whether or not you tried bios flashing. With Trixx, it doesn't save the profile, but you could always reset it each time am I correct? I feel like I'm missing something. Id say a bios flash is your best option, since you would never need to reset or tune anything. Overdrive won't help you, the only thing that I know that would've is MSI and it comes with a remote monitoring client which I'm not sure if would help you. It may be the extra 2 cores tripping it up, but it's strange none the less.

Any reason why you need the extra 20mhz? I'm not Experienced nor do I know anything about this stuff so sorry for my ignorance.

And get prepared for a lot of morons that are going to say WHAT A TROLLLLL. Ignore them, some people are just stupid, but most of us are not.


FASTRA 2 http://fastra2.ua.ac.be/
Edited by Spykerv - 10/15/11 at 9:23pm
     
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post #16 of 34
will windows see more than 4 gpu's?
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post #17 of 34
Quote:
Originally Posted by tagurtoast;15325832 
He doesn't need crossfire. Its 3D work, it will spread the load across selected cores itself.

OP, I am pretty certain that a monitor needs to be plugged into each card for them to "activate", you can use dummy plugs to do this (google "VGA dummy plug").

i second this... and stop declaring troll before reading the entire post
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post #18 of 34
OP:

You requirement is not for graphical scaling with 3 x 6990 = 6 GPUs.

So this is my suggestion:

Remove all OC and tweaking software. Flash the AUSUM BIOS switch position #1 with an edited BIOS. Use RBE only to edit the VID4 voltage for your stable OC core/memory clocks.

Enable Overdrive in CCC, then set the OC for each GPU. You can set a fix fan speed as this GPU farms is on 24/7.

Should you need more details, shoot me a PM.
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post #19 of 34
PEOPLE:

He is not trying to crossfire the GPU's! He doesn't need to! Rendering only takes GPU's, crossfire/SLI is a program made to utilize the GPU's in game. When not in game, crossfire is not needed.

On giant server clusters with 10,000+ computers, do you think they run all the GPU's in crossfire haha
post #20 of 34
Asking this in the folding forum would net you more mature responses than the idiots that will reply here.
    
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