Wanted to see what everyone thought was the best settings for S9 13.5. I have it hooked to a Antminer 1600W PSU via 220v. Have autotune running with the PSU power set at 1440w. Currently pulls between 13 and 14.3 TH/s some times dips a little lower for a bit. Board temp is around 70c and Chip temp is around 87c.
That's no better than factory stock firmware. Are you mining with AsicBoost ? That's the only thing I would think that would be the cause. Some pools have different URL's for AB. With AB On, you would, with stock Bitmain firmware, be drawing only around 1250 watts, at the normal 13.5 hash rate. With AB on and 1440 watts you should be at least 15 Th/S, with factory firmware. I know with other 3rd party firmware I got a tad over 17 Th/s at 1550 watts