How do I force a PSU to turn on? - Techist - Tech Forum

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Old 09-02-2006, 12:40 AM   #1 (permalink)
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Default How do I force a PSU to turn on?

I have a 550 watt PSU I got with my case. I want to use it to power some 12VDC lights that will go around my computer. However when I plug it in and turn on the switch in the back of the unit, it does not turn on. So apparently its waiting from a signal from the mobo that is not connected for it to turn on. Well how do I force it to turn on?

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Old 09-02-2006, 01:06 AM   #2 (permalink)
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connect the green wire and any of the black wires on the main motherboard power connector together, using i.e. a paperclip or a piece of wire.

that way, whenever it is plugged in, it will run

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Old 09-02-2006, 06:30 AM   #3 (permalink)
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you'll want a more permanent solution, hot wireing like that is ok for a quick test of the PSU to make sure its working but you dont want to be leaving it like that.

use something like this PSU tester, its basically just a load and switch.
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