A1398 late 2013 random shutdown with black screen

I have resoldered all the three IC's properly,,,,, Now different behavior, PPVCC_S0_CPU_REG is 0V. The fan is running, Board is not booting.
 

2informaticos

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Something happened when changed the chips.
Possibly overheat affecting CPU, maybe knocked off components...
 
The fan is slowly starting and then running at full speed, But still 0V at PPVCC_S0_CPU_REG. Should I close it or Is there something I can try?
 
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