dave plater pliprbcbyjigmailcom carlos e r wrote thursday 20080214 1519 0100 per jessen wrote measure hola carlos im using one httpwwworderconradcomxl1000_1999120012501253125319_ab_05_fbepsjpg ah yes id prefer data sheet english spanish get idea im looking probably manufacturer doesnt say much well measure spikes reactive power switch mode power loads pc uses switch mode power supply quite big taking power strange waveform may confuse heavily cheap meters cheap difficult say definitive test case would connect scope 5 12 rails perhaps 32 line spike going 5 would provoke instant reset cheers carlos e r mother boards nowadays use 12v supply board regulators vcore thats extra 12v connectors board 5v supply hardly used 33 important 12v also used mechanics hard disks etc thats need good 12v output psu dave wed 06 aug 2008 030359 0200 opensuse ot much power pc really consume