I know that both of them have BIOS flashback, Im asking which one support Ryzen 3600x without flashbackThat depends on when the motherboard was made; whether it was made before or after the BIOS update was released fro 3rd-gen CPU support. The B450 Tomahawk is one of the motherboards that supports BIOS flashing without a CPU. So, you should be able to do that.
Reference - View: https://www.reddit.com/r/Amd/comments/bvfo57/list_of_b350_b450_x370_and_x470_motherboards_with/
This is correct.If you get the "MAX" MSI motherboards they should bring out of the box BIOS for Ryzen 3rd Gen.
If you get a motherboard with the BIOS Flashback function then you will be able to update it without a CPU been installed.
Cheers
You only mentioned one motherboard. The MSI MAX motherboards all support 3rd-gen Ryzen out of the box.I know that both of them have BIOS flashback, Im asking which one support Ryzen 3600x without flashback