Phil you're awesome!

I have some of those motherboards on the way, also I have a z170 with 4 PICEx16 - spacing is going to be tight for a 4 card 1080TI no riser but I'm going to run it just to see how long it can go. Should get here monday.

My new bottleneck - these stupid Corsair 750's only have 2... TWO! 4+4/6+1 power ports. The Rosewill 850w you suggested does have 4 PCIE power lines, so I just need  to get some more cables that have 2 sets of 6+2's in them, I ran out. I upgraded a dozen 1070's to 1080Ti's today - hardware always takes longer than you expect. Was expecting to unscrew, unplug, swap and be done. The power cords threw me for a huge loop.


I was thinking about running power from my 1500w EVGA but I actually don't have long enough cables for that either.

So back to the drawing board.