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Power goes off when power button is released

When the power button is pressed and held, the light around the button flashes and you can hear the fans pulse (speed up and slow down, 2-3 cycles per second). When you release the power button, the power goes off. No matter how long you hold the power button down, no signal ever goes to the monitor and POST does not run (no beeps).

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  • don_lewis Jan 22, 2009

    After doing what you advised, the computer acted differently in that it would not turn off and the pulsing started slow and increased in frequency. The machine never did boot. I took it to a local repair shop. The power supply was indeed bad, but in going bad it had also fried the motherboard as you diagnosed. It had a Bestec power supply, and, according to the repair shop, that brand has a reputation of going bad and taking the motherboard with it. Total repair will be under $100. I appreciate the help.

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More than likely it is a dead motherboard

however....

you can try to reset the BIOS and see if that fixes it. To reset the BIOS, UNPLUG THE POWER CORD FROM YOUR COMPUTER (FAILURE TO DO SO MAY CAUSE A DEADLY SHOCK) open your computer. Discharge and body static by touching the side of the computer. Remove the BIOS/CMOS battery which looks like an oversized watch battery. Leave it our for 1-8 hours. Replace the battery and cloase your case. plug in the power cord and try to turn on teh computer. If this fails then you have a dead motherboard taht you have to replace

Posted on Jan 01, 2009

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