Two N-Channel MOSFETs acting as reverse-polarity and over-voltage protection.
: The best schematics come from official repair manuals. Once you know the device model (like "Zotac ZBOX-EI730-BE" or "MSI GT 605"), search for that instead of the PCB code. Search for phrases like: apcb+m3+94v0+schematic
: This is the internal factory model or revision designation used by the manufacturer to identify the specific PCB laminate, structure, or trace layout baseline. or trace layout baseline.