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  • i need help

    i'm sorry but i've searched and found part of what i was looking for.

    when i first joined i was able to find the thread about splicing an ATX power supply molex to run a carpc in-house. i've been searching and i can't seem to find it again. maybe i'm not using the right terms. can anyone tell me how to do this or link me to the thread?

    if i had the carpc hacks book i wouldn't be asking this.

    sorry for being such a noobx.

  • #2
    You need to short pin 14 to a ground. There are grounds conveniently located on pin 13 and pin 15.
    Pin 14 usually has a green wire.


    Details of the ATX pinout: http://xtronics.com/reference/atx_pinout.htm
    Have you looked in the FAQ yet?
    How about the Wiki?



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    • #3
      Originally posted by DarquePervert
      You need to short pin 14 to a ground. There are grounds conveniently located on pin 13 and pin 15.
      Pin 14 usually has a green wire.


      Details of the ATX pinout: http://xtronics.com/reference/atx_pinout.htm
      since i have an m1 psu so all i have to do is short the green wire to a ground on the molex, then take the ground from the m1 and connect to another ground on the molex, and take the +12v wire from the m1 and connect to a yellow +12v on the molex and then ground the ign wire to a ground on the molex?

      thanks for any help.

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      • #4
        It's a lot easier to wire it all to a 4-wire HDD power connector...

        +12v goes to the yellow wire (+12v)
        Gnd goes to a black wire (Gnd)
        ACC wire goes to +12v

        You jumper pins 13 & 14 on teh ATX power supply and you get 12v and a hot ACC to your M1.
        Have you looked in the FAQ yet?
        How about the Wiki?



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        • #5
          Originally posted by DarquePervert
          It's a lot easier to wire it all to a 4-wire HDD power connector...

          +12v goes to the yellow wire (+12v)
          Gnd goes to a black wire (Gnd)
          ACC wire goes to +12v

          You jumper pins 13 & 14 on teh ATX power supply and you get 12v and a hot ACC to your M1.
          thank you so much. i do have a spare hdd connector on the atx. thanks!

          and how exactly would i jumper the pins? just splice them together?

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          • #6
            Strip some insulation off the end of a short length of 24AWG and shove the ends into pins 13 & 14 (or 14 & 15) on the 20-pin ATX connector.
            Another way is to use a 3-pin male fan header, and wire the two outer pins together. It fits damn-near perfectly with the outer pins of the fan header into pins 13 & 14 of the ATX connector and the center pin between the two.
            If you want to get really fancy, you can wire this to a switch that maintains on/off state to turn on/off the ATX PSU.
            You can also wire a switch that maintans on/off state to teh ACC line to simulate turning the ignition on/off.
            Have you looked in the FAQ yet?
            How about the Wiki?



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