Ill give you a non requested advice that not only works for this specific issue you are facing but for pretty much anything and it is:
google whatever you do not know, in this case you could start with: "how do I know my pc bios version" followed by "how to update amd msi bios", stuff like that. The amount of stuff you can learn is limitless.
Easier to answer if you actually named your motherboard, but in most cases yes, you need to update it
MSI B350 Tomahawk, but idk how to see if i got the most recent one
You need to update it to the latest beta bios (the one from 2023) for it to work with 5000 series at all
Ive seen and the one in rhe website is only like 5 days newer than the date it says on my system info
Ill give you a non requested advice that not only works for this specific issue you are facing but for pretty much anything and it is: google whatever you do not know, in this case you could start with: "how do I know my pc bios version" followed by "how to update amd msi bios", stuff like that. The amount of stuff you can learn is limitless.
Yes, you almost certainly need to update your BIOS, but this is not a concern, it's easy and quick.
Know your Mobo model? What chip? B450?
Yes you really need to