System active but screen remains inactive, power button not functional.
System active but screen remains inactive, power button not functional.
I think the issue might not be with the mobo or CPU. Do you have someone nearby who can exchange components and test them? When the CPU error light appeared, do you mean the mobo's diagnostic LED? If yes, inspect the 4-pin or 8-pin power cable at the top left of the mobo, on both the mobo side and the PSU side. Moving computers around often leads to unexpected problems. Many people probably face similar issues at LAN events.
Performing a brief review for clear issues, such as loose connections. If no further diagnosis is provided and the system remains unresponsive, could it be that the initial posting takes an unexpectedly long time? I've encountered similar situations before. It's simpler if you can isolate the positive aspects one by one and proceed from there.