Checking for activity on the BIOS chip pins using an oscilloscope.
Probe the PWR_SW# pin on the EC chip. When pressing the physical button, the voltage should drop from 3.3V smoothly to 0V and jump back up. osamu2-dis-kb-hpc mv-mb-v1 schematic
The schematic structure maps out a multi-layered ecosystem, splitting tasks across dedicated chips and local voltage rails: Subsystem Component Common Part / Function in OSAMU2 AMD APU / Intel Core Series (BGA) Checking for activity on the BIOS chip pins
If you're looking for help with a specific part of the board, tell me: osamu2-dis-kb-hpc mv-mb-v1 schematic