While I know many AMD X570 and B550 motherboards will have a hard time getting these to boot, I had no issues with the MSI B550 Unify-X. It is my primary memory testing motherboard for a good reason. Being so, enabling D.O.C.P and adjusting the tRC value to 84 was all that was needed to stabilize these.
AIDA64
SuperPi
wPrime
Cinebench
Blender
3DMark Time Spy and Fire Strike
Games