Question about HP Pavilion a305w (DM181AR) PC Desktop

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HP computer doesn't turn on

Computer doesn't turn on. Green light is blinking on the power supply. I disconnected all the cables and reconnected them again now the green light on power supply is on and when I power press power on button on computer, the fan starts to turn on but then nothing happens.

Power supply is ATX 250-12z. Computer is HP Pavilion a305w.

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  • info319 Dec 13, 2008

    I got hold of ATX power supply and I pluged it in. Hurray! it works.

    There has to be a better way to diagnose this problem. Even better if the power supply is fusible or has a circuit breaker which can trip in case of power overload.

    Thanks.


  • David Dec 30, 2008

    i plugged my hp in to the belkin powerstrip at my parents house, and the fan kicked on in the psu, the light turned on on the psu, then i didn't here the bios beep, or the hdd start up, so i looked at the back to check that the power cable was in all the way, and the light was flashing green. I then unpluged it, and tried without powering the motherboard, and pata/eide drives, then the fan wouldn't work at all. when i reconnected everything the fan on the heatsink for the processor moved, but would not spin. I then tested the outlet for power and determined it had approx. 120 volts of power. i then tested the psu to see if it was shorted, and the ground pin was grounded to the case (good) but the two others, power and neutral, were grounded to the case as well (bad) thus i'm assuming there is a short to the case from inside. Also with the psu case taken apart there is a clicking noise from inside, cannot figure out where yet.

  • Anonymous Feb 17, 2009

    I have the same power supply and trouble on my HP Pavilon a620h. The rear power green light is blinking but the pc will not power up. Tried disconnecting and re-connecting all power cables to no avail. Front switch seems to be alright but I don't have a digital meter with me. Could not find any overload or breaker switch.

  • Anonymous Mar 23, 2014

    Won't start. There is power. But when press the power button, the fans start spinning, but it doesn't start the POST.

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  • 59 Answers

Your power supply is bad--you will need to replace. I suggest looking at tigerdiect for a replacement.

Posted on Dec 12, 2008

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