GeeCoolGuest
GeeCoolThe 13900F runs LGA1700: B760 or Z790 both work. Two points matter: choose DDR4 or DDR5 — the board picks the platform and they can't mix — and the 13900F draws a lot under full load, so the board needs VRM heatsinks.
Update BIOS to the latest version with the 13th/14th-gen stability fix. B760 covers normal gaming; Z790 is for overclocking, extra M.2/PCIe, or power tuning.