If you can swing it, Try this.

160 Bclk, 21 CPU Multi, Turbo OFF, 48x QPI, 20X Uncore, 10X Memory

That will give you 3.36 GHz and 1600 Mhz for memory.

you may need to raise Vcore a bit, and Qpi.vtt a tad.

this config should give you a good stable run. You can even go with 21x uncore if you wanted to.