Ok make sure your RAM voltage is set appropriately (1.65v)
Looking at your CPUz validation your RAM is actually at 1466MHz not 1333MHz. Also, since you raised your reference clock (FSB) to 220, this also raised your CPU-NB frequency to 2400MHz. The (CPU-)NB frequency also plays a big role in trying to get your memory to run at certain speeds.
The higher the CPU-NB frequency is, the more difficult it is to achieve higher RAM frequency (speed) because the CPU-NB is the lane that connects the CPU to the memory. By increasing the NB frequency it makes the CPUs' integrated memory controller work harder.
At any rate, for testing purposes we'll want to take the NB out of the equation. So in the BIOS find the "CPU-NB" frequency multiplier and change it to 9. That'll put you 20MHz below 2000MHz --which is stock.
Then set your your RAM divider to 1:4, this should put you above 1600MHz for the RAM. Set your timings to: CAS: 9, tRCD:9, tRP:9, tRAS:27, and tRC:36.
Prime95 that for an hour. See if you get any errors. If you do, we might have to change your configuration around some.