Well Crap,
My friend just brought me in their laptop, HP DV6636nr model and the LED's just flicker when you hit the power button.I have been working on laptops and desktops for over 20 years but can't figure this one out. I checked HP's recall list and it stops with the DV64XX series. I have removed the Memory, HDD and battery, plugged in the AC and same thing. Won't even attempt to go to the BIOS. CPU fan spins for split second as the led's light up and then all stops again. I have removed the battery, removed the CMOS battery and left it sitting for a week, but still nothing. I am starting to think that there is a problem with the MOBO. In this case, I already told my friend, since the laptop is over 3 years old, to just get a new laptop and sell this one for parts. Any ideas as to what could be causing this problem??

I also conclude it's the Mobo.

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