820-3476 sensor issue

[LetsFix]

this machine came cuz HDMI, wasnt working. i found the issue was with U9750, there was corrosion on r9704, r9703 and c9751. i replaced them all, and now it works, i get video in a external display.

but after that machine became slow, and fans blows at full speed. so i used ASD efi version, and got error on these sensors: TA0P, TM0P, TC0P and Th1H. these are managed by U5780.

I replaced the chip, and the machine is still slow...and i dont see any corrosion on the board anymore. where do i check now?

 

[2informaticos]

First try known good trackpad flex/board.

Does it work correctly before you touched RIO board?
If yes, try known good RIO board/flex too.

 

[LetsFix]

Already tried good know trackpad and trackpad flex.

already tried 3 good RIO boards, before touching board. after that replaced U9750, r9704, r9703 and c9751. now i got HDMI, but machine is slow.

 

[2informaticos]

"Does it work correctly before you touched RIO board?
---------------------------------------
now i got HDMI, but machine is slow"
It was slow before too???