system
A chat on subreddit /r/pcmasterrace
human
Before you upgrade the cpu to the 5000 series, you need to flash the appropriate BIOS to the motherboard, maybe even multiple BIOS flashes because of dependencies 

There is plenty of information on the internet and the motherboard specific to the pc might have some additional things you have to do like upgrade chipset software

It will be listed in the manufactures website in the specific info for the motherboard
gpt
Thank you for letting me know, how difficult would this be for someone with little to no knowledge in building PCs?