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Power supply on ATX motherboard

By anansimann ·
I have an IBM compatible with an ATX motherboard. I am loading win98, but sometimes the power just don't want to come on even though there is a lit green light on the motherboard. Sometimes if I leave the computer alone for a few hours, it might come on when I try. Is there a protective circuit on ATX motherboards to stop u from turning the power on and off? or, Do I have a power supply on the way out? or, Is my motherboard defective?

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Power supply on ATX motherboard

by CG IT In reply to Power supply on ATX mothe ...

check you soft power on/off cable to make sure it's properly seated on the pinouts on the motherboard. It might have worked it's self loose.[the two wire power on/off cable from the on/off button on the computer to the motherboard. Not the power supply cable from the power supply to the motherboard).

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by anansimann In reply to Power supply on ATX mothe ...

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Power supply on ATX motherboard

by dmiles In reply to Power supply on ATX mothe ...

Check the Power rating of your power supply,depending on the number of hardware peripherals you have installed in the computer may require more power than you are getting.

It may be the power supply going out so check with a multimeter

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by anansimann In reply to Power supply on ATX mothe ...

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Power supply on ATX motherboard

by Sudney In reply to Power supply on ATX mothe ...

I would check to see if your power button on the computer case is stucking. I don't know how much time you do spend triing to get your computer to come on, but the switch may just be sticking and then working back out in a few hours. A good cause ofthis to happen is the front cover of the computer not being installed correctly. If it's not this, It might mean your power suppy is going out. ( you'll know your power suppply is going out when any part of your computer hardware stops working and Windows finds new devices everytime you restart your computer out of the ordinary. Usually the Modem is the first to go.)

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by anansimann In reply to Power supply on ATX mothe ...

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Power supply on ATX motherboard

by yelhsa3840 In reply to Power supply on ATX mothe ...

try holding down the power button on the front for longer then 5 seconds, thats how long it is supposed to be held to turn off power. if this works the power supply shouldnt be bad the switch on the back of power supply (if there is one) will also turn it off but wont turn it on

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Power supply on ATX motherboard

by anansimann In reply to Power supply on ATX mothe ...

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Power supply on ATX motherboard

by yelhsa3840 In reply to Power supply on ATX mothe ...

try holding down the power button on the front for longer then 5 seconds, thats how long it is supposed to be held to turn off power. if this works the power supply shouldnt be bad the switch on the back of power supply (if there is one) will also turn it off but wont turn it on

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Power supply on ATX motherboard

by anansimann In reply to Power supply on ATX mothe ...

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