Awesome that you have a working PC now. Shitty that it was the mobo all along but Gigabyte strung you along
It's probably the worst part to have go bad. The hardest to isolate and prove that it's at fault. Glad you got a resolution!
Awesome! I'm really happy you got it solved.
Unfortunately, the bluescreening is back with a passion. Everything else still looks okay (yeah, I remembered to use thermal paste this time too). Going to try to RMA the processor as it's the only part left.