Check voltages on the memory coil ( +1.2V ), PCH coil ( +1.0V ), and GPU phase coils.
To efficiently navigate the PDF file of the LA-G851P schematic, pay close attention to these structural indicators:
USB Type-C power delivery system using standalone Power Management Integrated Circuits (PMICs). Storage: Integrated eMMC storage flash memory. Essential Power Rails and Power Sequencing
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Check all coils for appropriate voltages.