URGENT, PLEASE HELP!!! How do you hook up a power button for an AT power supply?

KennyH

Diamond Member
Sep 16, 2000
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I need to find out the wiring pattern for an AT power supply to the power switch that is on the front of an AT case. Someone please help me!!!! :( Thanks.


Kenny
 

Fardringle

Diamond Member
Oct 23, 2000
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This could be tough since there's no guarantee that the wire colors are the same from system to system, but looking at the BACK of the power button on my only AT system here, with the wires pointing down, the colors are like this:

Brown White
Black Green
 

esung

Golden Member
Oct 13, 1999
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like Fardringle said, the color is different from power supply to power supply.. in some situation it's actually reverse on different companies. the best way is the color code on your power supply unit, which will tell you which color connect to which color. and if you connect it wrong, be prepared to reset the circuit breaker(s) :D

 

Zach

Diamond Member
Oct 11, 1999
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If you connect it wrong, it might still work -- so long as the incoming hot and nuetral aren't mixed. Going into the PSU, the polarities can be wrong.
 

Gustavus

Golden Member
Oct 9, 1999
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As a couple of people have pointed out, the wire colors are not standard. What is standard is that the switch is a double pole single throw -- with the lugs that are vertically above and below each other being connected when the switch is closed. If you have an ohmmeter you can check this for yourself -- but you are safe to take my word for this. In most PS, a pair of dark color leads go to one of the switched pairs of lugs and the lighter ones to the other. In Turbo Cool supplies the black and brown wires go to one pair and the blue and white to the other. In Top Power supplies (the few I have had) the pair of black wires go to one pair and the pair of white wires to the other. Since it is a simple single throw switch it doesn't matter which wire in a pair goes to which lug.

That's as much as I can tell you. Hope it helps.
 

WildDreamer

Senior member
Dec 23, 2000
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You can also check on your power supply for a wiring diagram for the leads. A lot of AT power supplies have this on the sticker.