Psu wattage help Tags: Power Supplies Components Last response: April 10, 2011 11:21 PM in Components Share proton9 April 10, 2011 10:30:18 PM my cheapo psu has 1 12v rail at 20A, - 12v at 0.8A, 3.3v at 25A, 5v at 25A and 5vsb at 2A what is its wattage then, is it near about 450? More about : psu wattage delluser1 a c 243 ) Power supply April 10, 2011 10:35:03 PM It should tell you on the label where you got the rest of the info. No way anyone could tell from those numbers. proton9 April 10, 2011 10:36:56 PM theres nothing on the label except those ratings Related resources PSU wattage help - Forum Appropriate PSU wattage HELP ! - Forum How much wattage ? Help with PSU for new build - Forum Help with choosing PSU wattage - Forum PSU Wattage Help !? - Forum Can't find your answer ? Ask ! Get the answer delluser1 a c 243 ) Power supply April 10, 2011 10:37:35 PM Get rid of it. proton9 April 10, 2011 11:07:33 PM got my answer http://www.pcguide.com/ref/power/sup/output.htm delluser1 a c 243 ) Power supply April 10, 2011 11:21:10 PM proton9 said:got my answer http://www.pcguide.com/ref/power/sup/output.htm I'm going to take a guess and say that you looked into the math on the 2nd page, if so use it on these numbers +12v = 18a +5v = 22a +3.3v = 13a +5vsb = 2a -12v = .3a +5v and +3.3v = 140 watts I'll come back to see what that adds up to. Can't find your answer ? Ask ! Publish Related resources Need PSU Help ! What wattage ?? Forum PSU wattage concern. Please help . Forum PSU wattage help and recommendations..ordering new build tomorrow Forum First PC Build - PSU Wattage ? Forum What is my PSU wattage ? Forum Psu wattage Forum Can somone help me choose what psu wattage i need ?? Forum Psu wattage Forum Which wattage of PSU and is everything compatible? Forum PSU wattage concern Forum Help Calculating PSU Wattage Needed! Forum Help with PSU wattage Forum 212 evo fan replacement Forum [Solved] UPS vs PSU [True and Myths] Forum [Solved] Keyboard help Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !