Total maximum power is what is allowed for the whole supply based on its ability to dissipate waste heat and the capability of the initial circuitry to handle the incoming power before its divided into each DC output. You can't run all the output lines at their maximum powers, the manufacturer just gives you the max rating of each so you can run some of them up to max, assuming the others have low enough loads so the total meets overall power rating. Phase angle only comes in on the AC side, probably not involved in the ratings you describe. If you see a VARS rating (for Volts x Amperes Reactive) this would be related to Max parameters of incoming power from the AC line. Jack ----- Original Message ----- From: "Wyl Newland" <wylnewland at gmail.com> To: <tclug-list at mn-linux.org> Sent: Tuesday, March 01, 2005 4:35 PM Subject: Re: [tclug-list] OT: Uptime and power supply > On 1 Mar 2005 21:51:53 -0000, jonner.2530195 at bloglines.com > > Well, amps by voltage is exactly equivalent to watts in a DC powered device, > > so it's not exactly a safer way, but it's no less safe. (unless I'm missing > > something). > > The Antec TRUEPOWER 480 provides +5V 38A and +12V 28A and +3.3V 30A > and -5V 0.5A and -12V 1.0A and +5VSB 2.0A > > The total maxoutput is 480 watts > > 625 = (5 * 38) + (12 * 28) + (3.3 * 30) > but 625 > 480 .... trying to recollect if it was a sin() or cos() > ....... of how many degrees ....... and what to to with the negative > voltages .... and then ...... Tilt! ..... Tilt! > > My minimalist recollection of high school electronics from 1968 > permitted me to conclude that amps by voltage was easier for me to > understand. > > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list