Have they arrived? DO they work as advertised? What PSU did you use?
They said they would ship them starting July 10. I will use a Corsair RM 1000. Exactly what i use for my two S1. I should be overclocking them to 504 gh/s. (more if possible. depends on temperature and HW %).
I wanted to buy an EVGA SuperNova G2 1300W but there is only 6 PCI-E, you need 8 for two S3 if you want to overclock them. Otherwise, 4 is enough.
Have you found any overclocking info for the new S3's?
it is 8
2 wires are double 4 are single
use 2 single wires and a double wire for each s-3.
I could go into a long explanation but it should work. Since you will pull under 900 watts for the 2 s-3's
i have run 1215 watts on these evgas's running 3 s-1's no issues.
btw if you go to newegg it is on sale
this thread shows various sales on the evga 1300
https://bitcointalk.org/index.php?topic=591721.msg7639510#msg7639510