820-4924A Liquid Damage

[managerharry]

Most of the corrosion was in the area of Q7310 (legs and pads are gone on one side) & Q7311, and a small amount on the other side near C5629. Board has been UC'd. How to handle missing pads for Q7310?

 

[JohnB8812]

Does the board work? If no, replace all of those fets and U7200 and pray the CPU survived....

 

[2informaticos]

All these pads are surrounded by continuous copper trace.
Be sure to have good contact for bigger pad underneath the MOSFET.
You don't even neeed to resolder these pins.
Check diode mode on CPU coils and compare with a good board.

Is VERY important to have good contact for Gate pins of all MOSFETs.