Fan swaps that actually lowered noise

Genuine question first: undervolting bought me 9% efficiency for a small hashrate haircut, and I'd do it again. What's your setup?

Been thinking about this all week. my spreadsheet says stop; a shed full of warm hashboards says continue. Anyone tried the opposite?

Been thinking about this all week. the noise problem is solved by distance, not gadgets. the workshop was the real fix.

Second this. I treat mining income as a slow DCA and the mood swings stopped. What's your setup?

The real cost is never the rig, it's the 269W nobody budgets for. Would you do it differently?