According to the miner log, Avalon 1066 only detects 2 hash boards, which means that the number of hash boards is not complete. You can solve this fault according to the following two methods.
Troubleshooting:
1. Please check whether the adapter board interface of the control board and the hash board is damaged or loose. If it is loose, it is recommended to re-plug it. If it is damaged, it is recommended to replace the adapter board interface.
2. If there is no problem, you need to do a single board test, check one by one, check the faulty hash board, and replace it.
Click the article below to learn more!
>> Avalon A1066 single fan at 0 RPM - A1066 Kernel Log
>> Avalon A10 series miner maintenance methods and common problems
[email protected] [email protected] [email protected] [email protected]
China Mainland Hong Kong 
Business Hours: (GMT+8) 08:30-20:00 Mon to Sat 
Company Phone: +86-023-72227777