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Monitor screen stays black even though it's on

I turned on the laptop (Compaq Presario C700) but the screen remained black. I noticed the power light was on and heard the machine fan humming. I tried connecting it to external monitor but it still remained black. Even after I tried removing the battery, press the power button 30-60 seconds (to drain the power excess), and turned it back on.
Thank you.

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  • Kevin Hughes May 11, 2010

    Do you hear the hard drive working after you turn on the laptop? Not the fan, but the hard drive?

  • Anonymous Mar 29, 2014

    When the laptop was opened to start working, the laptop was already turned on. The screen is black and no way to see the screen. Now we can't turn it off even if we hold the on button down for thirty seconds.

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Remove the memory from your unit - power it up it should beep if full communication is still happening across your m/board. No beeps you board has died. if it beeps and your using two diffent memory modules just fitt one leave the battery out and power it up = if no display pull power swap out the memory and try again. if display occurrs you have a defective memory module - throw that failed unit away

glenn

Posted on Mar 08, 2009

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