Using a second Power supply

[youthemandan]

How do i wire up a AT style Power supply so it doesn't need to be plugged in to the motherboard. It is a lite-on model PS-5151-6B if that helps. There is no switch on the PS so how do u wire the one frm the case in to it. Pls help Me out.

Thank you

[SteenkyBastage]

how was the AT power supply turned on in your old system? i was under the impression that the AT PSU's had a switch connected directly to the front button on the case. the ATX PSU's run thru the MB and then to the switch on the case. so you would need to find out what pair of wires (assuming that's how it works, as that's how the ATX is) are used, and then run them to a switch.