http://www.evga.com/forums/tm.asp?m=...ey=&#100973314


I was forced to use usb monitor as GPUs haven't any video output (this engineering samples of Fermi are Tesla like, but they have 1.5GB of memory each like GT300 will).
Because of the new MIMD architecture (they have 32 clusters of 16 shaders) i was not able to load them at 100% in any other way but to launch 1 F@H client per cluster and per card. Every client is GPU3 core Beta (Open MM library). I supose it is much more efficient then previous GPU2. In addition they need very little memory to run. Having 16GB of DDR3 and using Windows 7 Enterprise I've managed to run 200 instances of F@H GPU and 4 CPU (i7 processor HT off). The 7th card is not fully loaded. This could also be an issue with EVGA X58 mobo.
I use together two Silverstone Strider PSU's 1500W each that is probably too much but
now I experiment with overclocking (cards are factory unlocked). Max power consumption
I've noticed was 2400W.
The whole system is cooled by my own construction of liquid CO2 which is heavy an inconvenient and I have to supply a new cylinder every 5 days.
It's probably actually closer to:
(30) 275's + CPU now a push = (7) Fermi

(30) 275's / (7) Fermi = 4.285 X as fast...


Power considerations:
He has (2) 1500W PSU's, using 2400 watts.

So lets say his i7 CPU uses 150 watts...

2400 watts - 150 = 2,250 GPU watts total.

2,250 / 7 Fermi = 321 watts per GPU...