Jup, all 3 spinn when powerd by both cords. Regarding PSU its way around, APW9 instead of the plus version, for testing. the miner stopped rigth after i powered back one of the cords due to the powercut, red led came upp instead of the green in end of power cycle, so that seems indicate a total sudden loss of function, rather then a progressive problem?. Seems to be a new design of the top cover, no 4 screws holding top down, this one have screws on the sides and something looking as a "button" on backside, how do i unmount the topcover on this miner?