The problem is amd driver, you can mine a 30mhs in linux with claymore 14.7 and hive os
give us a screenshot for r9 390 in ETC/ETH with 30M/h
What clocks and voltages? 113W - It's unbelievable...
yes it should be near 200w, but i dont have wattmeter, the temps are better in comparison with windows, 1040mhs core clock and 1100mv voltage