I've been having problems with mine since i got them. I can't get them to hash more then a few minutes before throwing errors. I decided to look at them with the thermal scope here are a few pictures sorry about the quality. you can see one board that looks fairly uniform then the two others with some very hot spots. They get plenty of cool air constantly and all screws were tightened before first hooking them up.
http://i.imgur.com/OZbi618.jpg?1http://i.imgur.com/79qZKbt.jpg?1http://i.imgur.com/Ix7GJQx.jpg?1
