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HP Pavilion a430n Won't Power On

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April 15, 2012 3:05:34 PM


Hello,

I know this post is a bit long, but I'm trying to describe the problem as completely as possible.

I have an HP Pavilion a430n that I purchased new in April 2004. Yes, I know it's ancient, but that's a topic for another time! Over the years I've added more memory and a new, larger hard drive, but otherwise it is stock.

I leave the computer on all the time. None of the power management stuff except for the screen saver in Windows XP (the current OS) is enabled, so the hard drive never shuts down. Recently I noticed that after being left alone for a long time (hours), the computer would somehow shut itself off. Pushing the big blue power button on the front of the computer had no effect. However, if I used the rocker switch on the back of the tower (the power supply switch, I assume) to turn it off, waiting a second or two, and then turned the rocker switch back on, and pushed the blue power button on the front, the computer would power on and boot as normal.

That went on for about a week. Now, the computer won't even power up. If I turn off the power supply switch and then turn it back on, the computer starts to power up, but then just shuts down after a second or less. It doesn't even get to the BIOS or POST or anything.

I'm pretty sure it's not a hard drive problem since it was able to boot normally before. I don't think it's the RAM for the same reason.

What else could be wrong? I'm hoping it's a part that can be easily replaced. Any thoughts on what it is? I know the motherboard is a possibility but I'm wondering if there's anything else it could be, or if there is something I can do to conclusively determine which component has failed.

Thank you!!!

Ryan

More about : pavilion a430n power

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April 15, 2012 3:23:28 PM

It sounds like a PSU problem. Try unplugging (from the wall) wait about 10 minutes then replug and try. If that doesn't work test your PSU:
http://www.youtube.com/watch?v=X3jBR82VLY4
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April 17, 2012 11:19:18 AM

Thanks Chaz. I'll take look at it and report what I find!!
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April 19, 2012 11:31:22 PM

I worked!! I did the test as shown in the video and it suggested the PSU was dead. I wasn't 100% sure I was doing the test right, but I was convinced enough to buy a new PSU.

I installed the new PSU and the computer booted right up!

Thank you!!!

-Ryan
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April 19, 2012 11:31:44 PM

Best answer selected by o_swas.
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April 22, 2012 12:50:35 PM

o_swas said:
I worked!! I did the test as shown in the video and it suggested the PSU was dead. I wasn't 100% sure I was doing the test right, but I was convinced enough to buy a new PSU.

I installed the new PSU and the computer booted right up!

Thank you!!!

-Ryan

Sorry for the delay in getting back to you.
Super happy that your problem was solved! :) 
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