Question about HP Compaq Presario C304NR Notebook

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Laptop won't turn on

My laptop was working fine a few days ago, but now when I turn it on all I see is the power light blinking and a low humming/crunching noise, but the screen stays black. Also, the laptop will only turn on at all when it is plugged in. Anyone know what could be wrong?

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  • 4 more comments 
  • mussini_j Dec 08, 2008

    Sorry, I think I didn't explain properly. What I mean is that even when the laptop is plugged into the wall the only thing it does it blink the power light and make the weird noise. It won't turn on properly at all. All I get is a black screen.

    Thanks for the answer anyway, I hope I'm clearer now.

  • mussini_j Dec 08, 2008

    I tried that, but I still get the same problem. Nothing has changed. Any more ideas?

  • mussini_j Dec 09, 2008

    I tried that, and after the memory was cleaned (there was one panel) the laptop hummed like a working laptop for a second but then the light flickered and it turned off. the screen was still black.

  • Anonymous Jan 10, 2009

    When I try to power up the power light comes on like normal, hard drive spins for a few seconds, then nothing. The power light blinks rapidly, but the hard drive stops and the screen stays black.

  • syoung77 Feb 02, 2009

    I have the same problem with the blinking light plus my LCD screen is black. Are these fixable problems or do I need a new computer.

    Thank you!

  • syoung77 Feb 02, 2009

    I have the same problem with the blinking light plus my LCD screen is cracked. Are these fixable problems or do I need a new computer.

    Thank you!



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You say that the laptop only works well when its plugged into AC power?
Being a PC technician the first thing i would be looking at is the battery, faulty batteries cause problems with laptops on start up, I think you may need a replacement battery

kind regads and please don't forget to rate us

Posted on Dec 08, 2008

  • 1 more comment 
  • Lee Hodgson
    Lee Hodgson Dec 08, 2008

    remove the battery and try it on AC only, if still no joj post back please.


  • Lee Hodgson
    Lee Hodgson Dec 08, 2008

    Ok, there are many different reasons why the machine won't boot up, underneath the laptop you will find access panels to the memory, remove these and clean them, they look like this:
    if there are 2 place them back 1 at a time and see if it boots

  • Lee Hodgson
    Lee Hodgson Dec 09, 2008

    the memory may be faulty, to test this plug a external monitor into the laptop to see if you get a display



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