Does anyone know what the difference in pressure is (inches or mm h20) across the Antminer S9 when running at full rpm?
I found the specs of the fans (QFR1212GHE-SP01) and the CFM vs deltaP and am trying to calculate the actual CFM through the miner when running at full RPM.
THX
Why? the firmware will insist you run a fan at 4000 or 4500 rpm if it is auto tune. So it will stay noisy on auto tune or just shut off.