ASUS has released the ASUS X670 / B650 1003 Beta BIOS update in the forums, bringing various feature updates such as support for non-binary DDR5 memory like 24/48GB.
First of all, these are test BIOSes and are not intended for public use. Therefore, there is no reason to try these new BIOSes right away unless absolutely necessary (e.g. you have already purchased 24/48GB RAM), and we strongly recommend you to wait for the official release before updating.
Shamino, ASUS’ in-house overclocking guru, has confirmed that the first batch of BIOS for AMD 600 series is now available. The firmware will enable 24GB and 48GB non-binary DDR5 memory support on AMD 600 series platforms, and has been confirmed by ASUS staff earlier this week.
As of now, the new BIOS support includes eight X670E and one B650 motherboard, such as the ROG Strix, Crosshair and Creator motherboards are available, but no other series are mentioned.
"strixe-e strixe-e newer -- (supports 24/48GB DRAM in a less aggressive X3D OC preset configuration) strix e f strix e f newer - (supports 24/48GB DRAM in a less aggressive X3D OC pre-configuration) strix e a strix e a newer - (supports 24/48GB DRAM) strix itx crosshair hero crosshair hero newer - (supports 24/48GB DRAM with less aggressive X3D OC pre-configuration) crosshair gene crosshair gene newer - (supports 24/48GB DRAM in a less aggressive X3D OC pre-configuration) crosshair extreme crosshair extreme newer - (supports 24/48GB DRAM in a less aggressive X3D OC pre-configuration) creator 670 creator 670 - newer (supports 24/48GB DRAM) B650 creator B650 creator- newer (supports 24/48GB DRAM) extreme https://www.dropbox.com/s/krcuro4lmy... -0801.zip?dl=0 hero https://www.dropbox.com/s/bzdr8621s3... -0801.zip?dl=0 gene https://www.dropbox.com/s/mjsge6stcf... -0801.zip?dl=0 strixe https://www.dropbox.com/s/ttduoc4gox... -0801.zip?dl=0"