Co jsem si našel tak aktualizace biosu není přímo potřeba.
"The system BIOS and/or Operating System can then initiate the loading of a microcode update into the CPU. Such an update is not a complete microcode, but rather a small patch to address bugs. The CPU contains a small area of volatile RAM for this purpose."
https://superuser.com/questions/935217/how-is-microcode-loaded-to-processor