Bypassing PC Power Supply Switch

[Jim]

I've taken a power supply out of an old Dell GX1 and want to use it to power
some 12V pc fans that I'm putting in the canopy of my fishtank to help
prevent the water from overheating. I'm not familiar with the pinout of the
connectors, so I need to know which pins need to be jumpered in order to
bypass the power switch. Any help would be appreciated. Thanks!

Jim

 

[Robert Lacoste]

Just take care : Usually a PC power supply doesn't work without any load on
the +5V output...