The Bitmain Antminer D7 is Unstable

This manual explains the causes of your Bitmain Antminer D7‘s instability and how to resolve it.

Abnormal Performance

1. The Bitmain Antminer D7 restarts automatically
2. The hashrate is unstable

Reasons and Solutions

1. The Bitmain Antminer D7 is an electronic product and is susceptible to electromagnetic interference. The miner might restart if the control signal is interfered with. When the chip is interfered with, the chip or hash board may behave abnormally. Restarting usually restores it, and grounding and shielding can help prevent it from happening.
2. The power supply is unreliable. When the Bitmain Antminer D7 is operating, the current of the hash board’s power output can reach 200 to 300 A, and the power output for the liquid cooling miner is higher. It is difficult to tell when the power output varies significantly because it will restart the hash board. Usually, you can try changing the power supply.
3. Low or unstable voltage are present. You need specialized tools or an experienced electrician to check for this issue.
4. The control panel is harmed. The control board is the center of the miner, which is equivalent to a microcomputer. Firmware software is stored in flash memory. The control board malfunction will also force the miner to restart. It can typically be reset to factory defaults. Also read: Bitmain Antminer D7 Flashing Tutorial With SD Card
5. In general, the chip can be located by querying the log, but it is unstable. The chip is broken or unstable; it can be sent back to the manufacturer for immediate repair.
6. There is a chance that the miner will restart because the network is unstable. You can typically try switching the network cable or network port for local inspection.