Question about Motherboards

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Power won't turn off and computer will not boot. I've removed the battery and cleared the CMOS with the jumper. lt happened after a couple of power failures at home however pwer supply has a surge protector. When I insert the power cable, power and rest lights are on in case, all fans are running but I notice that only one LED on the motherboard is illuminated. no error beeps or boot up

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  • pruegeoff May 25, 2008

    thanks for your input and I'm tending towards thinking that the power supply is the problem.

    the LED on the mobo which lights up is green andit does not blink

  • Majic Touch Feb 10, 2009

    My led is constant red when ps is plugged in. When I power on it has a solid green led next to the solid red led (i think that is the color, hard to tell with as bright as the red one is that never goes out) All fans are spinning. I have a multi-meter and would love to test the pins. I just don't understand why but it won't turn off when power held in either. I'm pretty handy and think I can handle that. Also which jumper pins are 1, 2 and 3 on this ccmos? I want to make sure that is set correctly. the way it is now they are on the pins closest to the pci slots. It is a friends computer and they had someone look at it already but want to make sure the jumper is set correctly. Also what kind of replacement ps is needed? I think we can use any similare ps but want to make sure. This is not an oem computer from compaq or dell for instance. This is the first time I've ever seen a board continue to work with a bad ps if that is the problem though.

  • Anonymous Apr 21, 2009

    my MS-7061 always turns on after shutdown

  • Glenn Rogers
    Glenn Rogers May 11, 2010

    Hello,

    Many times to turn a system off today you have to hold the power button in for four seconds. I just hold it in until the fans turn off.

    Having done what you stated your board should boot to a bios setup screen or your could see a message about system settings having changed and a prompt to press F1 to continue or another key to enter setup.

    Modern boards send a low power to the board even when its off and having unplugged and removed the battery the board should reset to manufacturer defaults. In addition to what you've done already. Try this too, remove the power connector to the motherboard as well as the button battery and power plug. While that is done, remove all device cards you have installed and disconnect power to everything except your primary hard drive. If you continue to have the no post issue after having done this you "MAY" have a dead board or "Power Supply".

    Are you comfortable using a multimeter to test power while the system is energized? There are a lot of reasons not to do this unless you have some experience working inside a computer with the power engaged. I wouldn't encourage you to be a first timer at this process. But, if you feel qualified just say so and I can tell you what color wires to probe on your power supply connector when connected to the mainboard. Also, you don't want to energize the power supply while the power plug is not connected as the power supply needs to have a load on it or it can cause a problem for you in addition to what you have already.

    There are power supply testers of various sophistication that could be used if you can get your hands on one from a friend. They aren't expensive at the entry point level of testers and handy to have around. Otherwise, its easy enough to test the proper wires yourself.

    Who manufactured your power supply and is it still under warranty?

    Otherwise, let us know which color light is lit, green or yellow and blinking or not.

    Regards,
    Worldvdvet


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Hi,

The Green LED on the power board is a warning light to techs to let us know the board is energized and to wait for it to go fully off before changing RAM or anything else on the motherboard. So, ignore that light.

What surprises me is that there are no error beep codes.

Try this out, pull the plug and wait for the light on the motherboard to go off. check that all connectors to the motherboard are tight and all plugs from the power supply are tight, remove and re-seat the graphics display adapter.

At the bottom right of your motherboard is a set of wire connections that are of mixed colors, green and white, red and while, etc. See if the green and white connector and all of them are seated correctly. It could be that the wires from the power on button are not seated properly or have come loose. The power on connector is usually three pins wide but has wires at either side of the connector. Also, some PC have a Case Open Switch, it is usually noticeable by examining the case opening. If you see one, put the case cover back on and try again.

Frankly, it appears your machine is stuck in sleep mode where even removing the power plug does not fix the problem.

The confusion on this problem is that there are no beep codes, and the board is energized which won't happen if the Power Good signal from the Power Supply is absent and thus preventing a bootup. Since, it is energizing the problem may be any of the above I suggested you look at and possibly your motherboard's CMOS chip. This chip instructs the board on how to boot up to the point where the BIOS chip can take over.

Hopefully, you are under warranty and can get service from the maker if nothing can be resolved by our help here at fix ya. Or, if you don't consider yourself a computer tech I'd further suggest you have one get their hands on your machine where diagnostic can be more thorough than we can give you via text messages.

Still, try the above suggestions and let us know.

Thanks,
Worldvet

Posted on May 25, 2008

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