Yes also after three days, I scaled it down to five cards. It runs so much cooler. I followed the directions provided by ssateneth to get six working but it kept on shutting down on me. I'm guessing too much power draw on the PSU. I had a killawatt showing over 1650w. Then I lowered the intensity to 18 and underclocked a little to get it to has ~600kh/s per card. Killawatt showing 1550W. Still crashing and shutting down. My guess is that the drivers are corrupted. So I reimaged the whole thing. Still crashed. Switched to five. Crashed for a bit. Turned down the thread concurrency to 21712. Now it's solid with zero hardware errors. So now I'm thinking if I should go back to six with zero crashing if I set the thread concurrency to 21712. But with five it runs so much cooler!

TLDR:
Six cards crashed. Switched to five and runs cooler. Now thinking maybe six cards crashed because of thread concurrency.