I just tried to OC two of the ones that came this morning, and both died after the reboot.
Putty connected OK
Changed values in asic-freq as usual
reboot via web interface.
Units reboots and starts beeping.
Cannot connect via web or putty, had to hold reset button and restart unit to default ip. Hope I can get it up and running
I have many others that worked fine, I think the Firmware may be different !!!!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