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Desktop won1t turn on but green light under power cord isflashing when plugged in

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  • joecoolvette
    joecoolvette Aug 23, 2010

    Power Supply problem. Weak voltage power rail. Flashing Green LED on the back, is the diagnostic LED that tells you this.

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Check VGA cable..is it properly connected.Otherwise this could mean various reasons...lose PCI/ISA/AGP boards,lose RAMS,lose IDE connectors etc etc..try all of them.

Posted on Aug 23, 2010

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My "hp pavilion a220n" won't power on. ... I was


Pull the power cord out and press the power button on the PC to drain the power for 10 seconds. Then plug the power cord back in and turn the computer on. If still does not work, then the power supply may be blown out and needs replacement.

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I hav the same problem..flashing green light and it will not power up. Wht does everyone mean by replacing the power supply? Is it the power cord? Or the big cube inside where u plug the power cord?...


The big cube that the power cord plugs into.
It turns the electricity from the wall into a way that the computer can use it, and gives it to all the parts inside.

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Sundenly it shutdown and never be open again


Hi Good day!! it is a Power supply failure, check the power cord maybe it loosen up. re-plug your power cord. if still not turning on, open your PC and check your motherboard there should be a green led light on. if the green led is not on. maybe your power supply give up, i suggest that you replace your power supply.

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I try to turn on my computer but nothing happens. i looked at it an in the back the green led light is blinking when I have the power cord plugged in so do I have to buy a new power cord?


No. It is likely that your problem is more serious than that. This generally means that an interior component has failed.

If the machine is no longer under warranty, then find a reputable shop to look at your Presario.

Apr 24, 2010 | HP Compaq Presario SR2150NX PC Desktop

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After plug the power cord,its not powering on


try seeing if your power supply light is on (green light next to your power cord plug in

May 21, 2009 | Acer Aspire M1201 Athlon X2 320 Gb PC...

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Green light flashing on back of unit near power cord also green light flashing on motherboard near power supply plug in.


I would suggest trying to replace the power supply. If that does not fix the issue, i would need to hear more about the computer.

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No power from laptop the green light is on the mains adaptor but nothing else


Try this : First unplug the power cord, then remove the battery and reinsert it. Plug the power cord back in and wait 10 seconds. Turn power on.

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