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10-23-2011 03:38 AM
My daughter's HP Pavilion dv 6700 was over heating so I tore it apart and removed enough wool out of
the CPU fan to cover a mouse... But once I put it all back together the video does not work.
It worked just fine before I took it apart and have torn it back down a couple of times and put back together with no luck...
Is there something that I may have done that messed up the video on it?
She heads back to college in a few hours and needs her laptop and I feel terrible about it,
10-23-2011 08:36 AM
OK, I got it working... the video chip is a BGA type (Ball Grid Array) and after some researching, I found that the
HP laptops are notorious for these parts getting hot and creating intermittent connections to the motherboard.
I took a thin piece of cardboard and cut out a square in it the size of the video chip and then covered the cardboard with
aluminum foil and made an opening in the foil where the cut out was.
I placed this over the motherboard to act as a heat shield with the video chip exposed. I then took a hot air gun
(for stripping paint) and heated the part up for a minute by circling the part while not applying too close or direct heat on it.
This allowed the part to reseat to the motherboard.
I reassembled the laptop and it booted up fine.
12-20-2011 12:51 PM