had a batch one witch has been struggling to get above 66ghs during the day and it goes higher at night..... the two things i had noticed it had a different style PSU, could tell by the back switch and the PSU area got hotter than my others.
Opened it up today to find a 650w bronze PSU..... should run better now with a 860w i hope.
Has anyone thought about moving the module closest to the PSU to the space for the fourth module?