[NUC] The NUC 11 Extreme Kit Appears to Boot Twice after a Power Loss?

Resolution

When AC power is completely lost, the NUC will do an EC check on the next boot with what devices are connected to the baseboard. This subroutine is intended to ensure that all devices connected are enumerated.

The behavior is intended due to the way that EC communications being structured to the EEPROM on the baseboard.

This happens regardless of configuration and doesn't affect BIOS settings.