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Tower my hp a420n won't turn on what could it be

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  • Dick
    Dick May 11, 2010

    It could be unplugged, a bad outlet, surge protector turned off, bad power switch, cable disconnected inside the case, failed motherboard, processor, RAM, or power supply.

    Post again with more details.


  • quadeer May 11, 2010

    lost my audio, video sound drivers , please can u solve my problem,

  • Peter Steiert
    Peter Steiert May 11, 2010

    When you press the Power button, nothing happens? No noise, not a stutter, nothing? Or does the computer power on yet you can't see anything?

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  • 239 Answers

It is either the power supply or the power switch on the front of the computer.

Posted on Mar 02, 2009

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