Vi and Vout looks ok, so the PMU is not the problem.
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.