received the u1 and begin mining now. so far no problem.
Looks good. Are you running with 'default settings'? I use clock=x0981, getting about 2 GH/sec. Tried a higher setting but there was an increase in HW errors without a real benefit in hash rate, so am staying with x0981. Using bfgminer 3.10.
Cheers
yeap, default settings, I never overclocked it since I havent get any cooler for it. So far din't found any error.