Thanks for posting this. Put together similar build recently for home and ended up running into many of the same issues. Ended up deciding to go with a regular

Thanks for posting this. Put together similar build recently for home and ended up running into many of the same issues. Ended up deciding to go with a regular MB and 3x Ti cards, which is enough for what I'm doing now and avoids many of the problems with bumping out to 4+ cards.