It might be in cgminer file
Try ssh in
Then
cat /etc/config/cgminer
Thats where clock settings are

I will find file when I get home to see where voltage is stored.

What is default in october firmware and batch 1?

is the december firmware stable for us to run 0750 and 262.5 overclock or should I stick to october?  November was disregarded

firmware is same for s3 and s3+ to my knowledge

I also emailed bitmain and will post answer soon