Switching gears,  got an evga 1000W PSU, both antminers up and hashing great.  I went to overclock them, and just went ahead with the max.  One S3 is has perfect ASIC status and good temps, the other one good temps, but one "o" on the asic status bar is an "x".  Just one.  Should I be worried.  Behing overclocked to a frequency of 250, both hash right around 500ghz.