I know this one is a little late in the game, but it is still good information if you have some old AT based power supplies in use. The one I ran across was an old NT 4.0 server that was missing it's power switch. When the power supply went out, it was easily replaced, but the new power switch wouldn't mount in the case so I copied the previous hack and used little wire nuts to short these contacts and keep the system on.

Blue & White

Black & Brown

 

 

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