We have never faced this in the many boards we tested in lab. I would suspect a weak solder joint somewhere, or some issue with this board which went undetected.
@Morblias: You could send this board for replacement. Please let me know if you do so and when so I can accelerate the process and also see what's wrong with this board.
However, if you have the possibility of testing this card on another computer, it would be very helpful, as the issue may come from the actual computer / driver that you're using.
Thanks,
Nasser
I tried it on my RPi (with minepeon) and ubuntu 14. Both came up with those same errors. Then I tried it on a windows 7 64 bit machine, and this happens, except it continues to hash after the errors. On the linux ones it would just stop hashing completely, but the windows one continues around 620gh/s. I found another USB cable and tried that also with no luck. Still happens on all of the computers. 620gh/s isn't too bad though, so I might just leave it on the windows machine.
