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Turning on a PC power supply without a mobo

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Trebeck:

I have a pc power supply (400w) just sitting alone.  Can I turn it on without a motherboard connection?

Thanks


Kevin Mullins:

There's typically a single green wire in the harness that needs tied to ground in order for it to turn on.

ideft:

yes on main header pins.  On an ATX power source I believe it is the green wire and you have to jump it to a neutral wire(black).  Just look on the internet for the pin outs for your power source.

example:

http://pinouts.ru/Power/atxpower_pinout.shtml

look at the description for the green wire.

Bleagh:

You don't want to run it without it powering anything.  It will burn out.  I assume you plan on powering a jamma board or something?  That should work fine.

garnerb350:


--- Quote from: Bleagh on November 15, 2008, 07:30:07 pm ---You don't want to run it without it powering anything.  It will burn out.  I assume you plan on powering a jamma board or something?  That should work fine.

--- End quote ---


I was thinking of hooking up 2-4 cooling fans to a power supply to supply air through my cabinet enclosure. Would that be ok to run and not burn out a power supply?


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