The updated schematic highlights +3VALW and +5VALW. These should be present even when the laptop is off. Find the RT8205 chip. Measure pins 7 (VREG3) and 3 (VREG5). If missing, the updated version shows specific EN (Enable) signals coming from the EC.
First, it is crucial to understand that "e93839" is not a consumer marketing name like "ROG Maximus" or "Gigabyte Aorus". Instead, it is a PCB (Printed Circuit Board) part number or a silkscreen identifier, typically found on motherboards manufactured by Quanta (a major ODM for HP, Dell, and Lenovo) and used extensively in HP Compaq Elite 8000/8100/8200/8300 series small form factor (SFF) and tower desktops.
The original document had a generic power-up sequence (RSMRST# → PWRBTN# → SLP_S3#). The updated schematic provides a precise timing diagram for the e93839, specifying exactly when the +1.05V_ME (Management Engine) rail must stabilize before VCCP.