Question about Biostar P4M80-M4 Motherboard

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Is there a power button cable connection adapter for IBM P4 motherboard to Biostar mother board?

Power button connection to the motherboard is different from the connection setup on the Biostar motherboard. The pc will not turn on.

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Re: Is there a power button cable connection adapter for...

If you mean that the power connector is a 3 pin socket connection and the pins on the motherboard are not in line and the middle connector hole is in the way, simply snip with scissors the end connector hole and seperate so you have a 2 pin and a 1 pin and just connect the 2 pin and use as a single connector because you wont need it and connect the 1 pin that you cut away to the other terminal

Posted on Jun 04, 2007

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Sounds to me like when the power supply went out it allowed a surge to hit the mother board and you will have to replace it also .Look at the mother board and see if there is a green LED light showing if it is you are getting power to it and you have capacitors blown if not recheck you connections from the power supply and MB if they are all tight and correct then just figure on replacing the mother board

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Good day sir, let try to test first the power supply, Unplug the power cord, remove the 20 pin (24 pin for the late model) molex power connector from the motherboard, plug in the power cord, get a 2 to 4 inch jumper wire, short the green wire with any of the red or black wire on the molex 20 pin power plug, the result maybe the following:
  1. you will see the power supply fan turn. you power supply is in good order. replug the power supply, and test again.
  2. you will see the fan turn for a few second then stops. you power supply is selective, and may require a different type of motherboard. Get a new one.
  3. you wont see the fan turn at all. get a new one.
If in case you are with #1. uinplug the power cord and remove all the expansion cards, data cables from the hard disk and cd drives. we are trying to isolate the problem. make sure that the only connected cables on the motherboard are as follows:
  1. 20 pin power cable.
  2. 4 pin 12 volt power cable (if applicable)
  3. speaker
  4. power switch
  5. power led
Test the pc once more. plug in the PC. If still the board wont power on. problem with your motherboard. Note:make sure your RAM is good. Hope this helps.

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