Compatible memory with MSI B450 TOMAHAWK MAX - Pangoly
Dirt cheap Gigabyte B450 S2H is surprisingly capable of 3800 MHz RAM at 1900 FCLK (even official site only lists DDR4 3600 as a maximum supported frequency) : r/overclocking
B450 Tomahawk Max dual channel question : r/MSI_Gaming
What RAM is compatible with an MSI B450 Tomahawk? - Quora