Yeah, U8000 were shorted. I feel bad about the PCH. Didn't check the resistance yet (just removed the U8000 and checked PPBUS_G3H), but I guess it's gone :/

Thank you!...

Hi all,
we have a MacBook A1707 with 820-00928-A motherboard that switches to 20V but drain just 0.01Ah.
Customer declared that this machine is used "as desktop" (always connected in the wall, and nearly never moved from his spot). No signs of liquid damage or burns inside, but there's a low resistance on PPBUS_G3H.
Injecting 1V makes PCH to immediately heat a bit (picture attached), so I guess there's a shorted mosfet or something like that somewhere. We still not removed the heatsinks to check if this happens on CPU/GPU too, but I'm here to ask were to start to inspect...

NANDs have glue all around, so they should be not contaminated, but we suspect some other chip is still contaminated under it and we will try to remove, clean and reball them all...
Unfortunately we don't have a donor board to swap parts on right now. We'll let you updated.