I plan on building a new beastly PC with Quad SLI/Crossfire, liquid cooling, etc. I was just wondering how I would possibly fit 4 video cards, a sound card, and a RAID Controller all on the same motherboard. All motherboards I've looked at only have enough space for the 4 video cards and nothing more. Does anyone know of a motherboard that I could do this on or have a solution that would allow me to do this?
Which card were you going to SLI? Its usually more efficient to run less cards, but make them higher end. Which would solve your problem. Quad SLI is most commonly done using two dual GPU cards like 690's or titans / 7990's.
Also a lot of motherboards have built in sound. Are you going to be buying a card that is actually better than the onboard?
Although she is perfectly correct about crossfire issues. Although on the other hand you can use Radeon Pro to get rid of the stutter at the cost of some 10% of your total fps. Which with two of those cards, you have enough hardware it wouldnt be noticed on most games.