NEW MSI MAX 400/A320 AM4 MOBOS
[EEC] MSI 400 MAX Series / A320 MAX Series
""Existing models with X470, B450 and even A320 chipsets will also be redesigned to support the new Ryzen processors. These models will henceforth be sold under the label "Max". The reason: The storage space of the BIOS chip of the older motherboards is not enough to fully absorb the list of new CPUs. The new Max models are therefore shipped with a larger BIOS component."