<span style="font-size: 11px; color: #959595;"><a href="/forums/profile/17">Southern Comfort</a> said:</span> Completely remove the PSU, plug it into the wall, and short the solitary green wire on the 20-pin connector to a black wire.
<span style="font-size: 11px; color: #959595;"><a href="/forums/profile/17">Southern Comfort</a> said:</span> Just make sure everything is unplugged. You don't want something getting power unless the motherboard connector is plugged in.The green wire is the +12VSB wire, and the power switch just shorts it to ground.(Interesting trivia, the -12V and -5V rails are unused in modern computers. They were only needed to support some very legacy cards on the ISA bus, and that hasn't existed since before the turn of the millenia.)