In Germany you have wall plugs each with 230V/16A.

* Best regards! :-) * Philip J. Fry, team seti.international founder. * Optimize your PC for higher RAC. * SETI@home needs your help. *

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So in other words, I could sell the hardware at the next flea market because it will not work all together in one case? :-(

Not exactly, we just call your atention to something most don´t even know exists or worry about since you are trying to build a super-cruncher. I belive is better to know that now than when you see your expensive MB melting.

You could build the super-cruncher, but you need to take a lot of precautions in this case, choose the right PSU, conectors, etc. and be sure you MB could handle the heavy current needed in the case of the 7990 to work form the PCI-E slots. Something must be clear,not all GPU´s uses power form the PCI-e slot, so build a 4xGPU if they don´t use power form the PCI-E is a lot easier (if you could handle the heat produced, but that is for another time).

My sugestion, go to Milkway or Einstein sites (they use DP - so the 7990 is common there), look the top computers, you will see most of them are AMI but no one uses more than 2x7990 GPUs on a single host, and ask their users, i´m sure they will give you a better look at the picture and show some paths to follow.

Maybe because all that power limitation is why most of the GPU´s drain it´s power only from the 6/8 Pin Power Conectors who don´t pass thru the MB itself.

BTW The ASUS Z9PE-D8 WS is a top off the class MB, i wish i have some here, the power limitation is not a ASUS fault, they can´t overide it, it´s a electric limitation the ohm law still applies, high current even under very small resistences allways produces a lot of heat.

Keep crunching

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