ryzen Ryzen 7 1700 instability and slow POST

[infered5]

I just assembled a Ryzen system and the POST and boot time is incredibly slow. More often than not, a CMOS reset is necessary to get to Windows. Once it's at the desktop it's incredibly fast.

 

I know for a fact that the BIOS version is out of date.

 

Obligatory specs:

• AMD Ryzen 7 1700
• MSI X370 SLI PLUS
• R9 270 (lol)
• 2x8GB Corsair Vengeance LPX 3000 (underclocked at 2133 since it's unstable past that)
• EVGA 500B

The BIOS version is E7A33AMS.300, build date 03/09/2017 (9th of March, 2017 for our international friends). Is a BIOS update all I really need to get it more stable? I can't use Game Boost or overclock my RAM past 2133 "optimised defaults" or it won't POST.

 

Thanks!

[johndms]

5 minutes ago, infered5 said:

Is a BIOS update all I really need to get it more stable?

It'll help.