Hi 
@w00dy85 just bumped into this post while doing some troubleshooting.
How did your experience with the F5-6000J3040G32GX2-TZ5NR RAM went? I just built a new PC with a B650E-F and I’m unable to change them to EXPO in the BIOS, I can only run them at 4800MHz. Did you use any custom settings or just the default EXPO settings from the BIOS?
Based on the experience with your son’s motherboard, do you think I’ll have more luck if I trade them for the F5-6000J3238G32GX2-TZ5NR? (At least they are in the ASUS QVL).
Thank you in advance!