text_combined: james knott gjaidadguarogerscom tom patton wrote thu 20080207 1013 0100 per jessen wrote randall r schulz wrote offhand dont know efficiency todays power supplies varies percentage rated output theyre producing words highercapacity psu consume mains power given level consumption output side wouldnt want large psu since would wasteful havent looked switchmode technology quite time would expect fairly fixed efficiency 8090 range quite probably minimum consumption required order achieve optimal operation otherwise think output power eg 80 input power rest turned heat say another wayat 80 efficiency 150 watt supply 500 watt supply either one pull current mains alternately supply 80 watt load ie mbapproximately 100 watts mains example would wasteful environmentbut maybe wallet tom nm youre forgetting may additional power consumed power supply might bit larger supply even load power supplies draw power use openofficeorg tue 05 aug 2008 192937 0500 opensuse unstable system culprit