When the Antminer L7 kernel log shows a read temp error, it means that the temperature sensor chip of the L7 hash board is faulty. You can troubleshoot according to the following methods.
Troubleshooting:
According to the kernel log, the temp lost of chain 2 means that the temperature of the No.3 hash board cannot be detected. Therefore, it is recommended that you use the test fixture to test the No.3 hash board to find the temperature sensor chip whose hash board is faulty and replace it.
Click the article below to learn more!
>> Antminer L7 Chain2 load EEPROM error - L7 Kernel Log
>> Antminer L7 lacks hash board - L7 Kernel Log
>> Antminer L7 power voltage can not meet the target - L7 Kernel Log
[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