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Thread: ATX Voltages

  1. #1
    Newbie
    Join Date
    Aug 2002
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    7

    ATX Voltages

    I know most of the computer is run of the +12V, +5V, and +3.3V rails in the power supply.

    What voltage is used for what part of the computer?

    I would like to know so I can figure out how much current I need in each line in a DC-DC power supply.

    Are there any good resources on this?

    Thanks,
    Ben

  2. #2
    Banned
    Join Date
    Jun 2001
    Location
    Adelaide, Australia
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    Re: ATX Voltages

    Originally posted by bgelb

    Are there any good resources on this?

    Ben
    yeah, a great resource is a search engine.. :P
    2 week temp ban (spam and complaining about deleted posts)
    register another account and you're gone for good.

  3. #3
    Low Bitrate
    Join Date
    Jul 2002
    Location
    Melbourne Vic Australia
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    HMMMMMMM Ge that's a great way to help people...



    a good place to start is the manufacturer of each component of the pc motherboard, cpu, hard disk etc..

  4. #4
    Variable Bitrate
    Join Date
    Apr 2002
    Location
    South Coast, UK
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    437
    The major ones are CPU, hard drives, and CD roms.

    You can get the rating for your CPU from the manufacturers web site. CDRoms and Hard drives have it on a printed label attatched to the drive. Then add about 3-4 amps for the rest of the electronics.

    CPUs using have their rating given in watts. So you will need to convert that figure into amps in order for it to be useful with the other figures. I think its something like Volts * Amps = watts?????
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  5. #5
    Low Bitrate
    Join Date
    Apr 2002
    Posts
    105
    just look around at other ATC power supplys and see what they rate at, like this one http://www.opussolutions.info/

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