Antminer S9 hash board abnormal input voltage troubleshooting
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The input voltage of the Antminer S9 hash board is 12V, which is reduced to 8.9V by the DC-DC circuit to supply power to each voltage domain. If the 12V input voltage is abnormal, the hash board will not work. What conditions will lead to abnormal power input voltage? This video will go detail and demonstrate troubleshooting.
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