Happy New Year All.
Despite living in a cold room here in England my anminer is insistent of mostly spinning the fans at 1680rpm. Temps are fine, 40/38 never higher. Frequency is kept stock at 225 but the noise is so loud from the fans. Is there a way to spin them down to perhaps 1260ish - it seems possible as they perhaps do this maybe briefly one an hour. I thought about maybe underclocking the unit? Played around in the terminal but couldnt find and fan settings etc.
Any bright ideas?

connect this to your psu then connect it to your fans it should run the fans at 5 voltt