philippe landau wluheuserlandorg randall r schulz wrote saturday 09 february 2008 1646 ntdreuzhawaiirrcom wrote saturday 09 february 2008 093913 randall r schulz wrote go back original question mine issue whether highly overrated supply wasteful power appears randall schulz disagree looked bunch efficiency plots 80plusorg help find plots really wonder first cut links comments trying show right ask much magnanimous contributions tagged especially liked saturday 09 february 2008 1122 philippe landau wrote randall r schulz wrote much depends power supply question today would recommend buying one 80 efficiency often reach 85 efficiency operate around 50 load power supplies 101 comprehensive guide motherboardsorg httpwwwmotherboardsorgarticlesguides1487_7html study quote may bit outdated 2002 valid cheap psus compaq certainly good check characteristics psu buy one httpwww80plusorgmanupsumanu_psuhtm seen earlier thread calculating power consumption needs components used always easy kind regards philippe switching powersupplies efficiency peak producing 50 maximum rated output however curve low side efficiency peak much steeper high side suspicion mostly correct psu twice capacity called supply waste significantly power one used 50 100 range wed 06 aug 2008 014709 0100 opensuse power supply psu efficiency