My Pc won't post

[Reeces_Piece]

My Pc won't post or connect to my monitor I just finished building it and I have no clue what the problem is, I'm using a HDMI cable and the monitor is also brand new

 

https://pcpartpicker.com/list/tsBPVF

That's my parts list 

[PopsicleHustler]

Is the motherboard running on up-to-date Bios that support Ryzen 5000 CPUs?

[Reeces_Piece]

2 hours ago, PopsicleHustler said:

Is the motherboard running on up-to-date Bios that support Ryzen 5000 CPUs?

It's not but idk how to update the bios if it doesn't wanna connect to any of my monitors