Not exactly what this 0804 bios is for, but I've seen @wagipon get 4800 14-13 2x16 with it. I believe other users have gotten it working on other bios versions.
Here is a microcode/ucode removed version, have fun and please post results!
0804-no-ucode.CAP
Don't forget to use the "patch_cml_ifnoucode.exe" on login for ratios to work properly, also strongly recommend disabling c-states and using manual vcore. It's available for download on the first page.
This should be better for SPI and overall scores, version with microcode should be better for Geek 3 mem score and maybe one/two other specific use cases.