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 Post subject: which cable from ATX ps to mb is 12v line?
PostPosted: Tue Jan 07, 2003 9:54 am 
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Joined: Tue Aug 27, 2002 2:44 pm
Posts: 56
Location: Escondido, CA
i need to power an external 12v device and want to feed the power off the ps without turning the computer on... thx for any suggestions...


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PostPosted: Tue Jan 07, 2003 1:28 pm 
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Patron of SPCR

Joined: Mon Dec 09, 2002 5:00 pm
Posts: 12
Hi...

The answer to your question is that the yellow wires are the 12 volts coming out of the PSU.

You gonna have a problem though trying to get 12 volts out of the PSU when the computer is off. If you need to power up the PSU without it being plugged into the motherboard ,you need to short the one green wire in the ATX connector to any of the black ones.


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PostPosted: Tue Jan 07, 2003 1:36 pm 
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SPCR Reviewer

Joined: Sun Aug 11, 2002 3:26 pm
Posts: 3998
Location: Phoenix, AZ
Or use a separate AT power supply to power your device. They don't need a MB to be turned on. (and you can probably find one for next to nothing at your local computer repair shop. A little trip through their dumpster, perhaps?)

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PostPosted: Tue Jan 07, 2003 3:22 pm 
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Joined: Tue Aug 27, 2002 2:44 pm
Posts: 56
Location: Escondido, CA
thx guys for the info... i probably will check out the at ps or get a ac-dc 12v adapter... guess those are the only viable options to run 12v without computer being on...


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