With that high of bclk, that would make it more difficult. What I would try is if you want a 4GHz CPU OC, use 20x201 instead of 19x211. Then up your VTT to +200mV to start. Then up your dimm voltage to 1.680v.
If that doesn't work, start increasing your VTT in 25mV increments until stable. Hopefully you'll be able to run the ram freq you want before needing +300mV.
If the 1st settings I mentioned work, then begin decreasing VTT in 25mV increments until unstable, then go back up.