I recently upgraded my s3's firmware what is with the new voltage setting underneath the freq setting? I run mine at 250mhz and have been doing so for 3mos now without a issue. What can this new voltage setting do can it give me more speed? I rn the on Corsair HX1000 PSU's So i got watts to spare 
If you up the frequency you need to up the voltage as well. The new voltage setting in the gui saves you from having to ssh into the machine and edit the files manually.