Well, it sounds like the chip does not have the higher Ram multipliers. You can try raising the bclk while simultaneously reducing the CPU multiplier (if you don't want to OC) or manually OC the chip.
if I OC the RAM using the ASRock EZ OC tweaker, it says it will run ram at 2000, or 2133. When I apply the 2133 OC settings, my CPU will overclock to 3.35 and the RAM will run at 609mhz (ddr3 1200)
I'm not sure how to safely/correctly use the right bclk numbers or "manually" OC. I believe the stock bclk setting is 133