Will the AMD Ryzen 9 9900X work with the MSI MAG B650 TOMAHAWK WIFI?
Yes. Both use AMD Socket AM5 (CPU socket, LGA1718).
Both records are reviewed against the manufacturers' sources; sources last checked 2026-10-14. Informational only: confirm with the manufacturer before buying.
Why
- ✓ Both use AMD Socket AM5 (CPU socket, LGA1718).
Good to know
- AMD: all Socket AM5 motherboards (600 and 800 series chipsets) are compatible with all Socket AM5 processors.
- AMD: a BIOS update may be required for Ryzen 8000 and 9000 series processors on 600-series (X670E, X670, B650E, B650, A620) boards.
- AM5 is DDR5-only; DDR4 memory from an AM4 build cannot be reused.
- AM5 processors do not fit AM4 boards.
Sources
- MSI MAG B650 TOMAHAWK WIFI: specs from MSI specification page, checked against the source 2026-10-13.
- AMD Ryzen 9 9900X: specs from AMD processor specifications, checked against the source 2026-10-13.
- AMD Socket AM5 (CPU socket, LGA1718): AMD desktop socket for Ryzen 7000, 8000 and 9000 series processors; DDR5 memory only. (AMD Socket AM5 chipsets page).
Check your exact setup
Other parts in the cart, current configuration (installed memory, fan brackets) and adapters can change the answer.
Check a whole cartAlso checked with the MSI MAG B650 TOMAHAWK WIFI
AI assistants and developers: the same answer, with a signed receipt, from check_compatibility at https://tetheredtrust.com/mcp or POST https://tetheredtrust.com/v1/check with existing_id: "msi-mag-b650-tomahawk-wifi", candidate_id: "amd-ryzen-9-9900x".