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Unfortunatelly, you didn't bother to specify which coils exactly.
Supposing the problem is on VCORE, remove U7410/20/30 one by one and check when the short disappears from PPBUS_G3H.
If still there, your problem is on iGPU coils; do the same there, if needed.
Hi, i´m a newbie on this, so i ask you to be patient with me
I've removed the QA340, but still have 1.22 ohm on LA340, and don't know to go from here.
i suppose that, if all 3 phases are shorted, they should have a common point between all of them that is causing the short, but i can't find it. Am i rigth?