First come for no power. Changed hub and 1.05supply because they were burnt. Then worked but GTX850M was not working properly, so much heat and random freezes when it's checked discrete.
I did these things
-I pull out GPU chip, gpu pwm, desoldered 19V GPU VCC and 19V VRAM VCC (PJP8501, PJP8502, PJP8700)
I think there are some resistors to move but I can't find. Can somebody help me with it

Hello. You need to remove the video chip from the board and look at these topics, there are solutions to your problem.

viewtopic.php?f=40&t=57771
viewtopic.php?f=40&t=77978
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Try to remove the video chip and flash the bios with a clean ME