Nope standard S17 56th unit, it appears bitmains auto-tune function is broken because my my first 2 hashboards are avg 18000gh each and board #3 is averaging 12000gh and I only have Normal and Low Power, no turbo.
Those sound like problems that might be solved with reflashing the FW, eait until you hear from Bitmain. That's assuming it's not in fact the board itself, have you checked the logs for anything that stands out? Has anyone looked to see if the units all arrived with the same FW? This is probably going to be step one for Bitmains troubleshooting; here's to hoping it's not a physical problem save some shipping and down time.