microcodes. I have been running the 10900K F0 microcode for some time in a modded BIOS with no issues.
ROG Dark Hero Z790 | 13900KS @5.7 GHz | g.skill 2x48GB 6800 MT/s | ROG Strix 4070 Ti | EK Nucleus 360 Dark | 6TB SSD/nvme, 16TB external HDD | 2x 1440p | Vanatoo speakers with Klipsch sub | Fractal North XL case