As a current user of ECC RAM w/ a Ryzen 7 1800, I can tell you it works.
We need faster ECC RAM though: the external RAM speed affects the internal AMD Infinity Fabric, which provides inter core comms.
We need faster ECC RAM though: the external RAM speed affects the internal AMD Infinity Fabric, which provides inter core comms.
Sure, you don't have to hard fault. Just like regular memory controllers don't fail on any bit-errors. But it's ideal, when dealing with critical data.