Making a good use of Computer Power Supply 3.3, 5, 12, -12 Vdc. Advice needed!!

[cjchands]

Making a good use of Computer Power Supply 3.3, 5, 12, -12 Vdc. Advice needed!!

Hi guys,
I took out power supply from Dell PC in order to do the testing on mini mill project where I need to use 5Vdc.
Problem is that, this type of Powersupply needed switch on to activate the power supply that I don't know where they are located...
I have attached picture, no diagram (of course), and any advice where I could remove the switch and by just plug in the outlet, I can activate this PS
Thanks guys.

[cjchands]

Picture of the ps.

[JFettig]

its in the biggest connector, probably the bright green wire, take a pic of both sides of it and post them.

all you do is ground it to a ground and it will turn on.

Jon

[Al_The_Man]

Pins 13 & 14, as Jon said it is usually green and the black (gnd) next to it.
Al.

[decoder]

Hi
If you have switched the supply on and are measuring the 5v without the load connected, the power supply will not work.
It will only supply all its voltages when a suitable load is applied to the 5v supply.
Many people are not aware of this.
Hope this helps.
Clive (UK) 50 miles from London.

[cjchands]

Hi guys, I wanted to post a clearer picture, but my camera wouldn't allow close focus.
First of all, there is no green wire among 30 or so wires and they are all the same size.

Purple wire label: +5VFP
Black: com
Blue/Blue-white: +3V3
Brown: TFSC1
White: P6
Gray: PS ON
Pink: ??
Orange: +12B
Yellow: +12A

Any advice??

[vextasteppingmo]

Connect the grey wire to one of the black wires in the large the large plug with a switch or hook up wire
this will turn on the power supply
+5 volts = red and black wire
+ 12 volts = yellow and black wire

[vextasteppingmo]

this is one I hooked up quickly on the bench to show what I mean

[JFettig]

hook the PS ON wire to a ground wire. you can use a switch to do it.


Jon