After normal operation of a Windows 11 rig on a UPS, plugged it into a shared power-board in another location.
Windows would either boot to a black screen or initiate recovery where with the Gigabyte UEFI online connection would not find any solutions, referring the errors onto F:\Windows\System32\LogFiles\Srt\SrtTrail.txt.
Of interest, fast startup in UEFI was found to be disabled, not by me.
No issues booting into safe mode with network.