PSU turn-on trick?

[gallilaw]

How do I get an ATX power supply to turn on without actually hooking it all up to the motherboard?

Want to test noise levels of a couple of PSUs, and possibly meter the wires for voltage levels off the system.

Thanks.

[WinXP]

http://www.virtual-hideout.net/guide...ds/index.shtml

This will give you the info you need.

[kimini]

Short the green wire to a black wire. That's the enable line, and grounding it turns on the ps.

[RoboTech]

The above link to Virtual-Hideout should answer your question.

Be carefull: some PC switching power supplies are not designed to operate without a load! If you turn them on without any load they might go up in smoke (yes, personal experience). I now use a 1 ohm, 25 watt resistor across one of the 5 volt molex connectors to put a 5 amp load on the +5 to keep the smoke in. Good luck,

[mrcandy224]

Better one here..

http://www.gideontech.com/guides/psu_powerup/

[GhettoBlaster]

I called Antec tech support a few weeks ago because I thought I might have had a bad PSU and they told me to use a paper clip to do that trick with the green and black wire. I thought it was a pretty cool deal there. And thank God my PSU was good