Did you try switching the controlboard to hashboard cables to check if it is OK?

Reply to this note

Please Login to reply.

Discussion

Yes, that was one of the first things I tried. Also used a different port on the control board, turned the cable around, and measured PSU voltage (is OK).

The repair manual talks about "power output terminals" on the hash board, but I can't find anything that looks like that. Why would a hashboard even output power? Or do they mean INPUT?