Bios Mods -The Best BIOS Update and Modification Source

Welcome.
Can I apply microcode updates and how to use these to support CPU on mentioned motherboard?
When It comes to compatibility table, it is unsupported: Compatibility Table

BIOS Link:
BIOS
Extracted BIOS by Universal BIOS Backup Toolkit and CPU-Z Mainboard section is attached to the post
Thank You for help.

Did you tried to boot with X3450?
Current BIOS already has compatible microcode for it.

That's great. Can I ask to upgrade microcodes in BIOS?

No, I'm not a tutor.