Reminds me of that intel thing, where most of the aftermarket motherboards by default don't constrain the 9900K to its TDP spec, but every reviewer seems to bench that way, anyhow.
In the Intel case, some BIOS enabled MCE by default, but you could disable it in the BIOS and get back the CPU working within spec. In this case, some BIOS are providing false state information to the CPU, and the CPU puts itself outside of spec.