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Which wires do I extend from motherboard for computer power button connector?
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unclet:
I would like to have a button mounted to the top of my cabinet which will allow me to power off/on my computer. 

I believe I read a post a long time ago stating that instead of hacking the computer's power pushbutton wiring itself that I can keep the that pushbutton as is, but simply extend a couple wires from the connector plug which goes onto your motherboard.  Basically, find the little connector plug which is related to my computer's power button and then insert a couple of wires into this little connector plug.   Now, when I push this connector back on to my motherboard there will be two free wires available for me to attach to a button to allow me to turn off/on my computer.

Now, for some reason I think my computer's power button consists of "four" wires (not the expected "two" wires a normal pushbutton switch requires),  although I am at work now so I can not verify this.  Maybe someone can confirm whether a computer's power button has 2 or 4 wires going to the motherboard.  If it has 4 wires going to the motherboard, then which two wires should I be using for my new pushbutton to control power to the computer?

Has anyone done this?  If so, then posting a picture would be great.  I get nervous attaching wires from my motherboard to stuff.

Hope this makes sense ....
NoOne=NBA=:
Most likely the extra wires are either for the reset button, or the power light.
You're going to need to check the manual for the motherboard, and figure out which wires are the two for the actual switch.
You might be able to do it off the motherboard itself, if it's marked well, but I'd go the manual route, if possible.
DaOld Man:
I have used two IBM Netvistas in my projects, and they have 4 wries on the power button.
If I remember correctly, two yellows and two blacks. You can splice into either yellow and black.

http://skennys-arcade.blogspot.com/2007/05/i-hacked-my-computer.html

This is the only ATX computer Ive ever seen with four wires on the power pushbutton.
Green Giant:
The 4 wires you are talking about are most likely for the power button and the reset button.  If not that then possibly some led's to show status along with the power button.

On mine I thought about coming off the motherboard, but the connections are so small.  All I did was shave off some insulation from the power button wires and attach two short wires with quick disconnects from each one.  Then I wrapped everything up tight with electrical tape.  My main power button still works fine and it is extremely easy to run my cab power button to the quick disconnects on the computer and remove it if necessary.
unclet:
Ok .... thanks for the info.   Looks like I need to have a closer look at my computer when I get home.
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