Quick question on modding CPU power supply

[chattinfarms]

I have a model okia 450w. Do I have to connect all the red wires black wires and such or can you just use say 4-5 of each. I'm lost on this as the thread here says use them all but I've read some others where they aren't using all of them. It is a atx in case you were wondering and ill post a pic of it. Thanks for the help in advance.

[Tzi]

Join the green one(power on) to a black one so it turns on straight away when you hit the built in power switch, and then just use a few of each color... snip off or desolder the rest.
Just watch those capacitors near the red/black wires as they might still be charged.

Orange = 3.3v
Red = 5V
Yellow = 12V
Black = Ground
Green = power-on (connect to ground)

http://pinouts.ru/Power/atxpower_pinout.shtml

[Olle P]

What Tzi said: Use all of the yellow ones for the 12V, and an equal amount of the black ones. Then you can use one red and black to feed the cooling fan.

[chattinfarms]

Thanks very much. It isn't charged anymore was put away few years ago cause it was outdated. I made sure it came on then I discharged it. Thanks for concern though

[envious8420]

I use them in groups of 3 or so and make multiple outputs. same with the 5v rail, and added a female usb pigtail to one and various other rc related pigtails 1 for my servo tester another as a rx male output plug for testing various radio functions. I leave an rx (old am) permanently hooked up to another for testing led setups or whatever and i can charge my phone while in there.

[chattinfarms]

Do I need a 5v and ground for USB hook up. I have a dual USB connection out of the computer and would like to add it also

[envious8420]

yeah power and ground. and when you strip the sheath on the usb cable, use the red wire to power and black is ground.

[chattinfarms]

Ok everything works flawless. Did not use load resistor but hooked to LEDs up and have 12 volts and 5 amps but still have a problem with USB as it won't power on my phone. Do I need to do anything with the green and yellow wire coming off of the USB plug. I know it works cause I tested it before I tore it all apart. In case you need to know I have the two LEDs and the USB pulling off of a single red and black wire.

[envious8420]

some phones will not work off of the usb i have found, my samsung works but my droid wont my wifes work phone wont work but her bberry does.

[chattinfarms]

I'm using an IPhone 5 that worked on the computer charging but doesn't now so I'm guessing I need those other wires