Just got my two S3's in today, and plugged them in and set them up.
They are both configured to run at 218.75 Mhz from the factory.
For whatever reason, one of them runs at 425 Gh/s and the other runs at 408 avg. The 5s averages are higher. Maybe it will be better when they are "broken in"

I put them both on an 850W power supply I had, but they both turned off, and started hashing at 26 Gh/s. Then, I put each on it's own 800W power supply, and that seems better. Only using 2 PCIE connectors so far.
Might be the voltage on the power cord coming from the garage might have dropped due to the 100 ft length...

Running out of power in the basement....