I'm having similar issues as well. The 2 I got from batch 3 auction will reset constantly. The voltage gets up to 1.16 and then they disable themselves. If by chance the voltage stays below 1.16 all is well but it's a crap shoot. I have heat sinks on the MOSFETs.
EDIT:Forgive but how do I limit the voltage I'm using a self compiled cgminer 3.8.5 (ubuntu) I don't see device management it used to be there.