Hello i have 2 hex4m boards that i aquired in february 2014 after a long wait my boards have arrived finally and i got them plugged in to recover a little bit of my loss one of the boards was hashing at 250gh with some nonces after reading a bit i got that fixed by cleaning the minion chips and adding some thermal grease now is working as a charm second miner is refusing to hash i did the same operation as the 1st one and the speed i get is 2 3-gh and alot alot of nonces