r/ASICMinersTalk

Hello, i bought some M21 and S19, but they've had problems. I use a 190V to 227V transformer because the voltage here is low, but I've been having problems for a while. What setup do you use to get the "good" power from the utility company?

No, I can't call them to measure it, and I also don't know if it could be harmonics or surges. My electrical panel has a surge protection device (SPD) and an residual current device (RCD).

I was reading about toroidal transformer but i don't have money now to buy one (i'm from brazil, its like R$15.000,00 =~ US3.000,00)

Its used miners, but i have a lot of problems that the seller say it's working well, but when i test it, it has failures and i return then to the seller. failures like board didn't recognized, boards failing, and restarting miners.

energy stays at 226v

i already have return 7 machines (5x m21, 2x s19), only one m21 keep working good.