EMC sensitivity? oh boy! thats something you definitely not want with your mining board.
My contractor has already stocked all needed parts, 1st. batch of pcb's should arrive next week.
Fridge starts and K16 reset itself, laptop USB port generated noise lead 10% hw errors, but raspi usb port "only" ~1-2% hw erros. But you can read more in kolondike thread from pages ~80 -> (but do more important jobs first so we get boards

Btw have your PCB's bottom full painted? I mean have chip thermal vias solder only? (Solder is better heat conductor than paint). Your three test PCB have full painted bottom. Avalon boards have paint free squares.
Please read after page 80 yourself, page 123 to be exact, 0.6% stable at 340mhz.. But its very irrelevant to this thread, the only similarities between the boards are use of Avalon chips and custom CgMiner drivers..