παραθετω δυο λινκ..
https://www.cryptouniverse.at/avalonminer-821-841-861-setup-tutorial-troubleshooting-guide/


https://canaan.io/question/how-do-i-connect-an-avalonminer-721-and-avalonminer-controller-including-raspberry-pi-1-2-and-3/

εσυ ποιο μοντελο εχεις?