I have 2 S9 antminer .It's work in the same room and the same temperature ,I see a difference in the temperatures of the two devices like that :

the Temp chip for antminer S9 #1=  90 , 93 , 95 , in the same time the Temp chip for antminer S9 #2= 87,82,81

the second one is work with lower temp than the first one why ? , although all of them in same batch and same Specifications.


Thanks