820-3437 fan going nuts

[gadgetfix]

now voltages are present on u5110 but no fan spin no boot. i was probing around on u7100. i might of accidentally bridged pin 12-11? could this be the cause?

 

[gadgetfix]

i got 3.4v on ppbus now? I also notice R7122/R7121 is both dead and there is big hole in R7105 i replace and it burnt again!?

 

[gadgetfix]

i change u7100 again same issue resistors burnt
how to check q7130? just see if short?

 

[gadgetfix]

ok got booting again everything is good. replaced isl and resistors that were blown. good news is the u5110 has pp3v42_g3h coming in now and also its shooting out 3.3v from pin 8
i will wash and retest board in machine? is it normal that out side machine board only with charger only and NOTHING connected - the fans run 100%?

 

[gadgetfix]

still spinning up. after boot

 

[2informaticos]

Fan will go high if trackpad is not connected.
Palm rest temperature sensor is not detected.
Run ASD again, if needed...