ASUS has released BIOS updates for all 300 series motherboards, adding support for the forthcoming 9th Generation Intel® Core™ processors based on new stepping. These processors are scheduled for launch in Q2, 2019. The latest BIOS updates are available for download now from the ASUS website.
Supported motherboard models and their latest corresponding BIOS versions are listed below. BIOS updates for additional chipsets and motherboard models will be added soon.