The firmware does not exist. I already have it on it and it's stable. rog-crosshair-x670e-extreme  

The following BIOS configuration is stable with the hardware. MB: ROG CROSSHAIR X670E EXTREME BIOS 1415CPU: AMD Ryzen 9 7950X3DRAM: Corsair VENGEANCE RGB DDR5 RAM 64GB (4x16GB) - CMH64GX5M4B5600C36 CPU SOC 1.3VCore Perf. Boost: DisableRAM: 1.26V

Voltages of 1.3 - 1.35 brought no success. With 4 modules.

I now only have two RAM modules in the PC. Let's see if it helps. ASUS should urgently work on the BIOS it's a shame that the supported modules don't even work with 2400Mhz or 4800Mhz andno information from ASUS Support.

The stability hasn't improved 