I believe asrock are the only manufacturer that have come out and said yes we test that ecc will work it's just not a supported config. The others don't quite commit that far.
I have an asrock + unbuffered ECC ryzen 5 1500 setup. I've checked windows does indeed detect errors when induced.
I have an asrock + unbuffered ECC ryzen 5 1500 setup. I've checked windows does indeed detect errors when induced.