Hi taserz,
I tested with my S9 13.5Th/s today (2 PSU), at 725mhz it generated 14,965TH/s (ideal 15,620TH/s) and consumed 1753W. But at 750mhz the result was not different when it consumed 50W more. And last time i tried at 800mhz, the result even worse, it dropped down to around 14,000TH/s and ate 1900++W. Each time i tested for 15-30mins and HW error is minor so don't count. Please advise if my S9 reached its limitation or what ?
Thank you in advance, i really appreciate !
Try one of the firmware above 8.8v (880) try 8.9 or the 9volt one. If you big mhz changes result in almost now th/s increase you need more power otherwise picking high frequency with not enough power it will just suck power and get crap results.