Just thought i would also add for all u guys that had/have/will have boards die after switchin coins or after losin power and so on chances are ur boards can be saved. Often times the boards will run fine hot which causes the solder to expand and when u reboot the miner or change the coin the miner stops hashing and runs the fans full speed which cools the boards back down causing the solder to shrink. Once it shrinks it isnt makin contact with the pads somewhere so the miner shuts that board down. Its usually as simple as that in those situations so please stop assumin the change in mined coin or ne thing else caused ur miner to stop workin...its just because it stopped hashing in general.
As for other guys/gals with other issues...well that can be ne number of other things so i will leave that to the other dudes handlin those questions lol.