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Wiring a P4M80-M4 mother board

Trying to figure out the wiring for the Imperial GV 20030812 the wires at the bootm a set of three two wired clips,,red an white,,green and white and black and white,,need to know what each is for,,and how to connect them to a P4M80-M4 mother board

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  • welsh1955 Feb 28, 2008

    I have all white wires on the three,,white an red,,green an white,,black an white,,is the white the negative on these,,Thanks for explaining in the previos message,,,

    Ray

  • welsh1955 Feb 28, 2008

    Appreciate all your help,,got it going,,,This is a pretty decent site,,I'll definately come back if I have any more problems,,Thats alot again,,

    Ray

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You can download the manual for the motherboard here, just click on the "manual" link:

http://www.biostar.com.tw/app/en-us/mb/driver.php?S_ID=246

This will list the front panel connections, which are 2 pins. Each of the jumpers, what you are calling clips, will connect two of the pins. Most cases have the jumpers labeled, i.e. power, reset, etc. But if they are not, it is usually: red/white = HDD led; green/white = power led; red/black = speaker; black/green = power switch; and black/white = reset. But your case may use a different wiring spec, but should list somewhere which wire is for which function.

Posted on Feb 28, 2008

  • Phil
    Phil Feb 28, 2008

    In many cases it does not matter, for example, assuming one is a reset (and unless the case has a reset button on the outside, it does not, and that may be why you only have 3 wires when there are normally more).

    However, it should be easy enough to figure out which is which. Just start with the black and white, and connect it to the power pins. When you press the power button on the front, if you have it right, the computer will turn on. If not, try reversing the pins, and try again. If it does not power up, then we have the wrong cable, and can try one of the others until it works properly.

    Since you have only 3 connections, I believe one is the power switch, one is the power light (this one does matter which way it goes), and the HDD light. This is similar to my case, where there are those 3 wires, for the switch itself, the blue power light surrounding the switch, and a blue light on the top that blinks when the hard drive accesses. My wires are all red/white, though, and have the description printed on each.

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I would suggest this generic Power On switch,

1) http://www.directron.com/atxswitch.html,

and the Red, and Black twisted pair of wires go to the Power On switch.

Your statement of ,"....don't know which of the colored pairs of wires go.....", leads me to believe you may have all of the Front Panel wires disconnected.

How about information as to where ALL the Front Panel wires go?
(Provided I have correctly interpreted your statement)

Back in the time that the eMachines T2542 was made, TriGem was the motherboard manufacturer.

The Model Name of the motherboard is Imperial, and the Model Number of the motherboard, could have been one of four variations offered.

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I would like you to view this page,

http://www.e4allupgraders.info/dir1/ecase/support/front_panel_header_support.shtml

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E) Pins 14 and 15 are for the Reset switch. (The button you press to restart your computer.
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F) Pins 17 18, and 20 are for an internal speaker.
This speaker is used for BIOS Beep Codes.

In the chart to the right, you will see GRD used many times.
GRD stands for Ground.
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Most of the eMachines I have worked on, use a Red, and Black pair of twisted wires for the Power On switch.
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Best method, is to follow the color code of the wires that come from Pins 7 and 8, and be sure.

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