12 Volt Rails

Discussion in 'PC Hardware' started by Shadow21, Dec 1, 2010.

  1. Shadow21

    Shadow21 MDL Junior Member

    May 13, 2010
    I just got a new Antec Earthwatts 650w power supply so that I can power the graphics card I will be getting in a few weeks.

    The graphics card requires a minimum of 24 amps on the +12 volt rail and my psu has 25 amps on the third rail so I'll be able to power the card but I was wondering if you add up the three amperages from all three of the rails to get the total amps on the +12 volt rail or are each of the amperages separate?