Hi guys

Id appreciate if someone could explain to me what the three red lights near the syncs are . I have a couple of s9 and one of the machines has the middle red light burnt does that mean the chip is burnt?

I know i can check the antminer ip settings for burnt ciruits but i just tried to change the pool and it wouldnt connect to the internet or show it was working,it also showed the continous decrease of hashrate from 9th/s or 10th/s To 0 as if it were dying

Please advise me on how i can test it