https://wccftech.com/intel-core-i9-12900ks-5-5-ghz-cpu-gets-updated-microcode-latest-msi-z690-beta-bios/

MSI has rolled out its initial BETA BIOS for Intel's upcoming Core i9-12900KS CPU which will feature a clock speed of up to  5.5 GHz.

The MSI Z690 BETA BIOS is rolling out to a total of 8 Z690 motherboards, all of which are part of the high-end MEG and MPG lineup. The new BIOS is currently available to download and comes with an updated microcode that should offer increased performance and stability when running the fastest Intel Alder Lake CPU. Motherboards getting the BETA BIOS support include: