Greedy motherboard vendors such as MSI want you to buy a new motherboard every two generations of processor for no sound reason at all. MSI is reportedly blocking support for 3rd generation Ryzen "Matisse" processors on its AMD 300-series chipset motherboards, including those based on high-end AMD X370 and OC-capable B350 chipsets. This would also put those who own $300 motherboards such as the X370 XPower out of luck. To recap, AMD announced on numerous occasions that it doesn't want to be a greedy clique like its competitor, by forcing motherboard upgrades and promised that socket AM4 motherboards will be backwards and forwards compatible with at least four generations of Ryzen processors, running all the way up to 2020.

This normally should mean that any 300-series motherboard must support 4th generation Ryzen processors with a simple BIOS update. Most 300-series motherboards, including from MSI, even ship with USB BIOS Flashback feature to help with forwards compatibility. Unfortunately, motherboard companies such as MSI care more about their bottom-lines than the consumer. In a support e-mail to an X370 XPower Titanium owner, MSI confirmed that it will not extend Zen 2 support to AMD 300-series. Other motherboard vendors could follow MSI's suit as a representative of another motherboard vendor, on condition of anonymity, told TechPowerUp that "Zen 2" processors have steeper electrical requirements that 300-series motherboards don't meet. This is an excuse similar to the one Intel gave for the planned obsolescence of its 100-series and 200-series chipsets, even as it was repeatedly proven that those motherboards can run and overclock 9th generation processors with custom firmware just fine. Would MSI care to explain whether a B450M PRO-M2 has a stronger VRM than an X370 XPower Titanium to warrant "Zen 2" support? Will all "Zen 2" processor SKUs have steep electrical requirements? Will there not be any SKUs with double-digit-Watt TDP ratings?Update (16/04): MSI posted a clarification on this issue.