Details for standard laptop rails like +3V, +5V, and the CPU Vcore.
A schematic is the "road map" of the motherboard. For the BM5291 Ver 1.3, this document provides: bm5291 ver 1.3 schematic
Shows how signals travel from the Embedded Controller (EC) to the BIOS chip or the power button. Common Repairs Using This Schematic Details for standard laptop rails like +3V, +5V,