Solve : Laptop HP Pavilion dv6809 not turning on?

1.	Solve : Laptop HP Pavilion dv6809 not turning on?
Answer» Hi all. I GOT a laptop that I left in the cold car overnight. After bringing it in, I turned it on before it warmed up. It booted up fine but then it froze and I made a mistake and took the battery out and unplugged it. Now it does a CONTINUOUS power cycle (on for 3 secs, off for 5 secs). I hear the fan and the HDD trying to come on, but nothing happens. It just KEEPS turning on and off. If I hit the Esc key or Ctrl>Alt>DEL, it will stay on but no HDD activity light and no video but the fan will continue to run. Oh yeah, before it froze, the window that I had open became full of squiggly lines. Did I short out the video card or what? Hard to say... Try it with AC power only and the battery removed.I tried that before and I got nothing. No beeps, sound or nothing. I think the mobo is toast

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