ASUS has released a new series of BIOS updates that support the latest high-capacity 24GB and 48GB DDR5 memory modules on select ASUS AM5 motherboards. These BIOS updates are available as test revisions for users to try out early from resident overclocker Shamino on the ROG forums. As a result, these BIOS updates are very volatile revisions

Source: Hot Hardware – ASUS Now Supports 24GB And 48GB DDR5 Modules On These AM5 Motherboards