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Help me install a LED Power Switch on my ATX PSU please!

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slapaham:

Based on what you have said, would it be a sensible idea to simply have a switch on the green 'ON' wire on the ATX then? As this is the cable that dictates the powering up then if a switch is placed on it, it will dictate on and off. If this is all true and a sensible solution, I guess I would need to couple it with a black 'neutral' wire to complete the switch circuit?

Thanks for your help! :)

Ed_McCarron:


--- Quote from: slapaham on April 19, 2010, 05:58:00 pm ---Based on what you have said, would it be a sensible idea to simply have a switch on the green 'ON' wire on the ATX then? As this is the cable that dictates the powering up then if a switch is placed on it, it will dictate on and off. If this is all true and a sensible solution, I guess I would need to couple it with a black 'neutral' wire to complete the switch circuit?

Thanks for your help! :)

--- End quote ---

Yes.  Leave the mains alone, put a switch across the green and black wires (on the ATX output plug) and you should be good.  Hang a standalone LED (with the appropriate current limiting resistor) across 5v or 12v and DC common.

Avoid calling the dc common 'neutral.'  Thats more of an AC term and electricians will call you nasty names.  :)

slapaham:

 :P to electricians! ;D

Thanks for the advice chap. This project is starting to get more of a challenge now (not because of what was discussed here!), so I have a feeling it's only going to get more difficult from here on out! ::)

P.S. Just to clarify, this ISN'T an arcade machine build! ;) (but it is arcade-related!)

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