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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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  • Expert
  • 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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Hello.

Is the computer still its power ? if the pc has its power then try to switch on without the memory. if the system beeps means that the mainboard and processor is good. However, if the pc has no power at all then first check the power supply.tell me what happen i give you more troubleshooting.

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