* Recommended is a 450 watt PSU with one 75 watt 6 pin PCI Express connector, but could be run on a quality 400 watt PSU. 600 watt with two 6 pin connectors will be needed for crossfire.
* Recommended 37 Amps on 12 volt rail for single card and 50 Amps for crossfire. This card can run on lesser this is just recommended and will be able to run with at least 30 Amps on 12 volt rail.
will its only 108 at full load and im not overclocking, so is that fine?
600w is a lot of power for a system. If you had said two fermi's and a gulftown then clearly that wouldn't be enough, but for an i7 750 and two 5770's, 600w will be good enough. Llama is correct in what he says, it will be a strain but imo it's enough.
You are cutting it pretty close yeah, but it's good enough so long as you aren't running all of your components highly overclocked.
Have i5-750 (@3.2), 5770, 4gigs ram, 1 SSD, 2 HDDs, one Blu-ray recorder, one DVD recorder. My system w/prime95, or furmark running just under 300 Watts.
Normal gaming is normally less load than furmark andor Prime95. So you should be sligthly less than 400 W. 400/600 = 66.7% of rated load for 600 W PSU which is OK.
if that is so then i should be good, im gonna get it next week and do a crosfire, and yea i dont think my system goes at full power even when im gaming, thanks for your support, this forum is the best others i have went to dont even bother to help.