820-01041 a1990 no power water damage PPBUS_G3H full short

[Jeffotskie26]

hello got this a1990 PPBUS_G3H is full short
i tried removed f7000/1 pin 2 PPBUS_G3H is shorted.
when i injected voltage from ppbus only the cpu is getting hot
i didnt see any caps overheating.
btw: PPBUS_G3H_SSD0_SNS shorted also
tried inject also here but same only cpu is heating.

 

[Jeffotskie26]

this is exactly is over heating when injecting ppbus

 

[2informaticos]

If CPU was not already dead, you've killed it injecting voltage in such manner!!!
So many threads and discussions about same error on the forum.

You have a shorted chip on the CPU power supply, very likely.
I talk about U7210/20/30, or U7410/20.
"Be aware, some CPU/GPUs have very low value as normal; latest CPUs measure like pure short in fact!"

HOW TO collection

I hope this "How to" collection will help our members. I will possibly modify this post in time, if updates available. Trigger SMC_ONOFF_L (PMU_ONOFF_L): It reffers to simulate power button function, when the keyboard is not connected. We need to do this when we work with the board...

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