KA3 log diagnosis and processing

• Power failure

If the log appears 3 hashboard can not find the chip, most of the power supply hashboard power supply no output problems, you can check whether the power supply copper row screws are loose or replace the power supply.

• Fan failure

If the log prompted "sweep error string = F:1" that is, the fan is abnormal, you can try to replace them one by one with a normal fan, and then replace them after confirmation.

• Drop board failure

KA3 has 3 hashboards (chain=0, chain=1, chain=2）， if the identification of less than 3, that is less board, can be disconnected, and re-plug the row of wires and check the power supply copper row screws are loose, if not recommended to return to repair.

• High-temperature failure

If the log indicates "poweroff=true msg="high temp 1 low temp fan err 0 read no temp 0, uneffective temp 0, lost connection too long 0" is high-temperature protection, you can reboot to recover (before rebooting, you need to check whether the operating environment temperature of the mining machine is too high, whether foreign objects are blocking the air inlet of the mining machine, and whether the ventilation is normal to avoid repeated high temperatures leading to damage to the mining machine).

• Mining Pool anomalies

If the logs indicate "No servers could be used", it means the pool is abnormal, you need to check if the pool settings are wrong, you can change the pool or contact the mining pool to solve the problem.

If you have any questions, please feel free to contact BITMAIN Customer Support.

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