Bitmain Antminer S9 Control Board

If your Bitmain Antminer S9 has the following problems, you need to consider change the control board.

Phenomenon 1: Miners cannot get IP

Phenomenon 2: Unable to enter the miner backstage

Phenomenon 3: Unable to detect the hash board

Phenomenon 4: No hash rate

Phenomenon 5: The miner cannot detect the fan

Phenomenon 6: The miner crashes during the upgrade process.

Phenomenon 7: Both the yellow and green lights of the network port are off.

Phenomenon 8: The control board is damaged