Pc powers on by itself

Posted on 2012-08-22
Last Modified: 2012-10-09
my computer comes on its own anytime i plug it in and only shuts down when i unplug also has no display..
Question by:Net-techTris
    LVL 9

    Expert Comment

    bad motherboard or bad power supply.
    LVL 5

    Expert Comment

    Make sure the cords that plug into the PWR and RESET pins on your motherboard are connected properly.

    What do you mean, no display?
    LVL 2

    Expert Comment

    How do you know your computer is on if there is no display, do you still have to press the power button?

    Author Comment

    when i plug in the power cord for the pc it comes on automatically and the monitor is blank ..but the cpu fan spins an so does d system fan and the power supply fan.. and the only way i can turn it off is by unplugging the power cord
    LVL 5

    Accepted Solution

    It sounds like you have either a bad power supply, motherboard, or CPU.
    LVL 91

    Expert Comment

    use the minimum setup as described in this guide  :                  (Short-overview-of-how-to-troubleshoot-bad-hardware-when-a-pc-does-not-post)

    in case the disk has problems, use this article :
    LVL 69

    Expert Comment

    I think it's the power supply - try swapping in another.  If nothing changes, it's probably the motherboard.  Bad cpus are very low probability.  What happened to the machine to cause this?  If it was a power outage or surge, everything in the system is suspect, as a blown power supply can ruin anything connected to it.

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