Lac781p Schematic Top | FHD · 2K |

The large BGA chip in the center is the AMD APU. Around it, you will find the VCORE power phases, consisting of high-current inductors (coils) and MOSFET pairs.

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The 19.5V input enters the board from the DC jack. It must pass through two protective N-channel isolation MOSFETs before reaching the global system rail, often designated as or VIN in the schematics. The large BGA chip in the center is the AMD APU