FINALLY! ASUS’ latest BIOS update 3803 solves my Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3000MHz C15 Memory Kit - Black CMK16GX4M2B3000C15 inability to run higher than 2800MHz no matter what I did and even then some reboots would fail.
NOW with this new update I was able to just enable the D.O.C.P. profile and 3000 mHz is THERE as the first choice!
F10 and boom! it boots with no reboots immediately.
Base components, total at the time was ~$800 for parts minus PSU: