The power sequence of a desktop motherboard is a strict, step-by-step process that ensures all components receive the correct voltage in the proper order to avoid hardware damage
The PSU stabilizes and outputs the main voltages: desktop motherboard power sequence pdf
: A linear regulator on the motherboard converts 5VSB into 3.3VSB to power the SIO, PCH, and BIOS chip. RTC & CMOS The power sequence of a desktop motherboard is