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When the Avalon 1246 kernel log shows hash board 0, the control board cannot recognize the hash board. You can solve the problem by the following methods.
Troubleshooting:
1. Check whether the hash board cable and 1246 control board are damaged. If damaged, replacing the new hash board cable and control board directly is recommended.
2. Do a single board test on the hash board, check one by one, check the faulty hash board, and replace it.
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