set the max Power to 100W for 1 board and then use only 1 hashing board, at the end you will have 1.1Th/s for about 110W, it’s not really hot and it’s not loud with only 1 Board, you will hear only the PSU, not the Miner
Would it also possible to change the fans of the miner to standard 120mm computer fans to make it even quieter, or does Braiins OS doesn't work then anymore? I ask this question because I think I will use the miner to run all 3 boards at 100 Watts each if this is possible with basically no noise.
More or less CFM = 3.25 x Watts / allowed temp rise deg F
So figure out room temp and how hot you want your miner to run an you can do the math of how much air you have to move.
This is not perfect but should give you a good idea of how fast / slow you have to run the fans. It's also a worst case scenario of heat transfer.
-Dave