So you want to build an S9 space heater for your last winter before the halving? Here is what I found while trying to optimize for cost and silence. I don’t think much of this is original, but generally like to share so we don’t all have to repeat the same experiments. Total build cost of about $225 that hashes about 9 TH/s at less than 40 dB and can be used at a slight hum in a bedroom. nostr:note10kwqc92xdv0ddypjez4jhqffssgk6c42nvgjxxz6anhdz0j8dkvsk99av2