We're running all of our Ants at 393mhz, which brings them just over 200GH/s. We slid the blue/yellow pins out of the back fan, so it's running @ 100%. Then we added a second fan up front, which is also running @ 100%. Temps are in the high 30s on almost all of our Ants, with some in the low 40s.
Haven't had any issues to date.
That's very good to know, thanks! Do you know about how many watts each unit is pulling at 393Mhz? I have a 1200W PSU running two S1's right now, not sure if it will handle a 3rd if overclocked.
Measuring one on a 80PlusGold PSU with a Kill-a-Watt, it's ~465W.
When we put 8 of them on a 208v 92% server PSU, they pull right around 16.5A for 8 of them (measured from the PDU).
16.5*208=3432/8=429*0.92=395
So 429W from the wall, and 395W from the PSU.