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Help!!!- Gateway w340ua. Brightness flickers and comp shuts off

I have a Gateway w340ua. The battery needs to be replaced, however other issues are now prevalent. The computer feels like it is getting hot underneath and the fan goes on an off pretty frequently. Sometimes the screen brightness will flash from bright to a darker resolution on and off for no reason at completely random times. Occassionally the computer will shut off on its own. Help!

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  • 1chadhasting Jul 23, 2009

    Pin is tight...could it be that there is a problem with the fan? But then again, why would the screen flash bright and "not so" bright?

  • 1chadhasting Jul 23, 2009

    Well...strange thing is the display will flash from bright to dull randomly and I can see that the computer is going from A/C power to battery all while sitting on my desk without anyone or anything touhing the power cord or's the stangest thing.

    I've taken the battery out, and been using it the past 1/2 hour. The computer shut off automatically once. It was hot underneath. Any thoughts? Thank you very, very much for your input. It all helps in deducing my issue.

  • 1chadhasting Jul 23, 2009

    It's strange because my computer will flash bright to dull frequently and intermittently all while sitting perfectly still on a desk without anyone touching the cord. Thoughts?



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Sounds like a power probelm
check the pin in the dc jack where you plug the adapter in, if this pin is loose just a little
it could be that yoru going from battery power to ac power , for that reason your screen would flash and you would shut off now and then

Posted on Jul 23, 2009

  • if you were to take the battery out

    see if that stops the flashing

    then the ac connection could be ruled out

  • if the pin is tight,

    it must be the inside of the ac adapter plug

    i know those yellow plastic ends on the replacement adapters are not very strong

    and the light could stay on the charger part,

    a way to test this is while its on move the plug softly, to see if there is change right away,

    but carefull not to move to hard or you could break that pin

    ebay sells adapters for cheap, and you always could use an extra one



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