Well, it is an advertised feature that explicitly states (althought under hidden footnote) that it breaks warranty so yeah, would be nice if someone tried to get them to court over it. I'd imagine they would be raked thru coals in EU

> It even comes on by default in a number of cases. That would mean the AMD Processor/Memory would have the warranty voided when you first power it on!

That I'd be doubtful about as AMD have no bearing about what options random motherboard vendor enables by default