Hello,
I have 60 pcs S9 miners.
Some times some S9 have error with HB "xxxxx" , and ussaly send to reparier to china.
Two weeks ago i have same problem with one of miner. But befor i have send to china, i put on other miner ( who work normaly) this 3 HB and was suprise that now all 3 HB work. So i put gain back on error minet this 3 HB and again show all "xxxxx". So i figured out that problem was not with HB . So on stock i have 2 controal board new one and i put on this error miners and miners not work not because " xxxx" but because too low tempreture of chips.
So i change 2-3 difrent firmaware and same problem.
Now i asking if anyboday could tell me to solve this problem. Because my HB are ok, but on this miners not runing with old controal borad ( because "xxxx") and also new controal board ( because low temperature) . I dont want send back complete miners to chine, because they need 3-4 months to send back to me.
best regards
P.S. : I apoligized for my bad english