Sorry, budget for mb $200ish. If I get a x470 nb, don't I need a older cpu to flash it with? Also was looking at newegg at x570 mb to see ram qvl. Nothing over 21xx mhz ram is shown.
Some boards have a bios flashback feature that allows you to flash the board with out a cpu. Ram normally defaults to 2133mhz until you set it manually to its advertised speed. If the QVL only shows 2133 they haven't updated it yet.
Just as a note if you are not aware MSI and Gigabyte boards only have x6 SATA ports where some Asus and Asrock boards have x8 so be aware of that if you care or think you need that many
I am building a home media server based on an X570 board and a Zen 2 CPU later this year or next year so all MSI and Gigabyte boards are useless for my use case