Re: Antminer R4 - dead hash board? Shitty design, read before you send it back
Sorry if my explanation is too complicated.
1) turn off the miner
2) unplug working board
3) start miner until it hashes.
4) if you are lucky, it will recover bad board
5) turn off miner
6) plug good board back
7) start miner until it hashes.
if you are lucky, you have both working boards
9) if you have bad luck, try it again. You can also try start "single-board-test" program via Putty several times.
NEVER stop or apply changes before miner start hashing. It killed my board, but I recovered it by previous steps.
1) turn off the miner
2) unplug working board
3) start miner until it hashes.
4) if you are lucky, it will recover bad board
5) turn off miner
6) plug good board back
7) start miner until it hashes.
if you are lucky, you have both working boards9) if you have bad luck, try it again. You can also try start "single-board-test" program via Putty several times.
NEVER stop or apply changes before miner start hashing. It killed my board, but I recovered it by previous steps.
Sorry I missed important thing: I am disconnecting white data cable from controller board.
UPDATE: Just tested this on latest batch, another DOA R4 arrived. Afer starting with "bad" board only it ressurected.