could beis it really worth my trying out my other 7600X ?
Will throw in random 2 cents:
I have a completely stable, CO tuned 7700X in Gigabyte B650M Elite
Yesterday changed one setting that made it start crashing in games. And games only, my normal suite of stability tests didn't pick it up.
All I did is change CPU Load Line Calibration from Normal (minimum) to Medium as a test. I know LLC is not necessary on AMD, and is meant more for all-core overclocking (and even then buildzoid hates it). But didn't expect to get instability from it.
Had similar experience on previous 5800X too.
Worth a try to turn LLC off maybe?