the problem is the TPU chip, maybe broken or EEPROM Firmware corrupted. to recover the Firmware of EEPROM or reprogramming new firmware is too much difficult for a non experienced user, and you need a EEPROM programmer.
After a lot of testing and thinking, I think the problem could be in the position of the FAN VRM header.Could it be that the engineers have designed the FAN header very close to the VRM chips and that "maybe" can create an unwanted power surge? and f...