What is your hashrate?
It looks like one or two hashboards are having some kind of problem.
You should open a ticket at Caanan and post the log there.
Update:
What voltage offset are you using? Please try with -1 or even -2.
Please check your temperatures, 42 degress C at input is a lot, maybe it's overheating ! Fans are at 100%, this is not normal.
Temp[42]
TMax[95]
Fan[5760]
FanR[100%]
my voltage offset is 0. what does it actually do?
so what does the safe temp for in and out? is it below 40 for in?
and below 95 for out?
-2 lowest hash rate with least power used.
-1 more hash rate with more power used
0 even more hash rate with more power used
+1 most hash rate with most power used
no one does +1 with good results
0 can be done in a cool room with a very good psu
-1 is good if you are running hot
-2 is good with a shitty psu.