I aslo met this problem on 2024 May which is same with @Yapper1 , it's either because some invisible update from ASUS or the motherboard quality gets bad after less than 2 years. I didn't change nothing on the PC.

Hi I'm having the exactly same problem starting from May, my motherboard is ROG Z790-A STRIX,  the distributor for ASUS won't listen to what I've described and keeps letting me test the hardware check on the wire of motherboard which means nothing, c...