AMD Ryzen 5 3600 GIGABYTE B450 AORUS PRO WiFi RTX 2060 Gaming X Mirage 360 Nimitz TR8000 part 1 - YouTube
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