I'm suddenly interested in having 3x Radeon 6990's on one motherboard. This is 6 GPUs total.
I am aware that crossfire will only be able to address one of the cards, but I will not be using them for gaming, so I should be able to address the cards for computational purposes correct?
What motherboard would work for this? I saw that someone had benchmarked 3x Radeon 6990s for a computation but that blurb did not mention how the cards were being addressed or have details about the rig.
Also since I won't be saturating the PCI bandwidth then it wouldn't be a problem to use the 8x and 4x slots.
Finally, I'm not sure what kind of power supply I should be looking at. 1600w?