The problem is, after trying 6 GPUs (and after troubleshooting have discovered a bad GPU) the rig will still crash with 5 cards. 150watt x 5 GPUs is only 750 watts, plus 100 watt for the board. CPU is barely utilized mining, so its not under load. No reason I should be crashing with 5 cards on a badass 1000watt PSU.
Its just a jenk board I guess... I've got a couple ideas, but not in a hurry to get upset more.