Antminer S19j Pro Chain 1 only find 0 asic - S19j Pro Kernel Log

According to the kernel log provided by the user, Chain 1 only finds 0 asic, and will power off the hash board 1. As a result, the initialization of the soc fails, and finally, the miner cannot operate normally.

The fault log page is as follows:

Solution:

First, test the total domain voltage (normally around 13.5V). If the total domain voltage is abnormal, you need to check the output of PIC (normally about 3.3V), DC circuit output (normally about 15V), and boost output (normally about 20V). If the total domain voltage is normal, check the RI signal voltage of the ASIC chip (normally about 1.8V). We generally check from the back to the front according to the transmission direction of RI. After finding the abnormal RI voltage, test the domain voltage (normally about 0.32V), LDO1.8V, and PLL0.8V of the domain corresponding to this RI. If LDO1.8V and PLL0.8V are abnormal, test whether they are short-circuited; if not, replace them directly to solve the problem. If LDO1.8V and PLL0.8V are normal, test whether the ASIC chip is short-circuited; if not, replace it directly to solve the problem.