Asus Strix B350-F Gaming not posting

Sep 8, 2018
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I've read over the threads but don't see my situation:
new MB asus B 350-F, new psu, new Ryzen 2600-G.
I have display and can see components in
BIOS but no posting/booting action.
Tried different PSU, same problem.
Tried different memory sticks, same problem.
Carefully checked installation of MB for shorts. Tried with one memory stick instead of two.
Seems like must be either faulty CPU or MB.
Any suggestions?
 
TY!! That worked although it was a bit of a journey. Had to zero out keys in BIOS to disable Secure Boot.
It still would not boot from my Windows 10 disk. \
But I took your advice and created a USB Windows 10 disk and it magically booted from it.

What do I do about those zeroed out keys? Restore or leave be?

Thanks again.