my config : P5Q Deluxe , Q6600 , 4870+4850 (currently using 4870 due to my retarded PSU and wont handle both) , 4 HDDs (1 Black + 3 Green), CM690 cabinet + some FANS....
Config is not important coz i want a future proof PSU which can handle my OC needs and 2x 5870s in CF and BTW Q6600 @ 3.6Ghz @ 1.41V Consumes around 135W on my PC.
With my current Config my PC heats up a lot coz of my bad cable managment so need a PSU that can give around 85% eff at around 50 degs...
Also the temps are high due the fact that both 4870 and 4850 idle around 68 to 71 Degs with GPU Fan speed to Auto and around 60 Degs with 100% GPU fan speed... The 4800 series sucks in terms of Heating..
and... OOPS MY Current PSU is CM extreme power 600W - shame on me....
Also i need a high wattage PSU bcoz :
1) Will go CF with newer ATI cards and a complete upgrade in Future
2) my normal load is(will be) about 450-500W so eff at this wattage must be higher... and AFAIK with 80+ PSUs 40 to 60% Load gives max eff.