Dv9812us Laptop will not startup

I have a Pavilion dv9812us. The problem is that when I turn on the laptop, all of the LEDs (minus the caps LEDs) flash on and the fan kicks on for a sec. Then it turns off. It then repeats this cycle of on and off over until I unplug the AC adapter and remove the battery. This occurs in every combination of powering up (ac+battery, battery only, ac only).
What this tells me is that it is trying to power up, something interrupts the process, so the computer re-tries to boot up after shutting down, but the same error occurs so its a cycle. The error occurs before there is any screen activity. Based on another thread I did tried to reboot the computer without the HD in, but that wasn't the problem.
There had been signs of thing happening before this. The power button would not respond after it went into hibernation. In those instances I would have to remove the battery to get it to turn on. This led me to believe that it was a battery problem at first, but now it seems like a bios or motherboard problem. But, I'm not sure. Is there a fix? Any help would be greatly appreciated.

The 9000 series are prone to graphics problems, see this video
http://www.youtube.com/profile?user=mixcatcom#p/u/58/bnkQNmKauEc
symptoms may include:
Laptop will power and turn on, but no display on screen
When Powered on you can hear fan and blue lights light up but nothing on screen
Cycles on and off by it self however never shows anything on screen
Screen is full of "squiggles" or vertical/horizontal lines
Reboots on its own after a few minutes and repeats this
No power at all however power jack and supply are good
Here is a person who fixes this for a reasonable fee
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=260595095107

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schlip76 wrote:
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Dv9812us Laptop will not startup

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