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Wiring Instructions

post #1 of 14
Thread Starter 
I am going to post this here because it is the closest forum I could find for it. I am trying to find some detailed instructions for the wiring of a computer. This is the last thing standing in my way before I can confidently assemble my own computers. The newer PSU cabling systems are fairly straight forward with all the connectors already there. Unfortunately my current PSU is just a giant mess of molex connectors with adapters for pretty much everything in my pc. It isn't very easy to understand.

Also I need to learn how fans are powered. I know some have 3pin connectors. (I think?? More information would be nice) but my fans appear to be wired in to some of my molex plugs. I would like to know how this is done.

Any help understanding this electrifying issue would be greatly appreciated.
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post #2 of 14
Looking
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post #3 of 14
Thread Starter 
Thanks for the link but that is more about cable management then the actual wiring of the cables.
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post #4 of 14
Quote:
Originally Posted by futa_demon View Post
Thanks for the link but that is more about cable management then the actual wiring of the cables.
oh crap. Sorry. let me get you the link on PSU wiring. hold on
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post #5 of 14
Thread Starter 
Quote:
Originally Posted by sladesurfer View Post
oh crap. Sorry. let me get you the link on PSU wiring. hold on
You still here sladesurfer. I would really like that link.
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post #6 of 14
I'm currently modding an Enermax 431W power supply for my external water cooling cabinet I'm building. Maybe I can help.

What exactly are you looking for?

A wiring diagram ... as in a color coded diagam of an ATX power supply ?
post #7 of 14
Red = 5v
Black = Ground
Yellow = 12v

Fans pull power from the 12v and back to Ground. 3-wire fans do the same but have an additional optional wire to report fan speed. You need a motherboard or fan controller to read the fan speed.
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post #8 of 14
Thanks DuckieHo !

I was looking at it as being alot more in depth, but after re-reading his original request I see that it was just a basic overview that was needed.

I might point out that some fans may use a pass-through cable using the 4-pin molex connectors. Most case fans are 12 volt in nature, so the yellow and the black are the ones to look for.
post #9 of 14
Thread Starter 
Thanks guys this helped a bunch. I am also looking for for instruction and maybe a visual aid on how to rewire molex plugs to add fans and other connectors into it. I need to know because my current wiring system is like this. For instance instead of having a pci plug for GPU coming from my PSU the pci plug is wired into my molex connectors. It is not an adapter. Its all a little confusing.
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post #10 of 14
Normally a Power supply ( or even the video card ) will come with an adapter so that you can go from the standard 4-wire molex to the pci power plug ... which can be either a 4 plug or a 6 plug molex configuration ... depending on your video card.

If you don't have an adapter, maybe you could tell us what video card and power supply you have and we can point you to the proper adapter.
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