Further testing seems to show that the ones that will run overclocked are cgminer v 3.4.3-1 and the ones that came today are 3.8.5-1
Anyone else got any experiences like this?
Mine came with the latest firmware & cgminer 3.8.5. OCed fine, has been running several days now without a problem other than the asic status display bug. 12 hr pool stats showing average 204.64 GH/s.