microcodes. I have been running the 10900K F0 microcode for some time in a modded BIOS with no issues.
ROG Hero XIII | 10900k @5.2 GHz | g.skill 2x32GB 4200 CL18 | ROG Strix 2070S | EK-AIO 360 | 6TB SSD/nvme, 16TB external HDD | 2x 1440p | Vanatoo speakers with Klipsch sub | Fractal Meshify 2 case