Good. At least this is, hopefully, ending on a positive note and not with AMD and the ODMs burying their heads in the sand.
Also, this tidbit is important to me: "The EXPO profile itself does not increase the SoC voltage, the board vendors assign a pre-determined value of their own to support the increased speed of the EXPO profile".
AMD is at fault for not providing a more rigorous guideline or even checks within AGESA, but that comes with the territory of allowing ODMs to "get creative". Sadly, this is one where being too permissive have backfired horribly. Live and learn.
As for the Warranty... Gosh... If they'll still honour those in reality, why even put them outside of the warranty on paper? So darn stupid. AMD, Intel, please don't be so stupid on this one. If you want to support EXPO/XMP, then help memory makers to validate and make them "within spec" and not "overclocking", so they can be covered within your warranties. Or even better, push JEDEC to have a more comprehensive set of ranges for memory and timings! Come on!
Regards.