here are some settings to try. even so, I can't recommend reading this guide enough -
http://www.overclockers.com/3-step-guide-overclock-core-i3-i5-i7/
ok I'll post some basic settings. hopefully you wont have to change more than this
try these and see if it holds up to intel burn test. however no two chips or motherboards act 100% the same so you may find that doing this step by step like in the guide works better since this really just boils down to me blindly guessing based on my own system.
CPU multiplier - x21
bclk - 172 (some people say even # multipliers are less stable so you could also try 173)
QPI ratio - x36
Uncore ratio - x18 (my UD3R is very picky about this setting for some reason. Usually only x18 or x20 proves stable for me. Either way the uncore must be at least 2x the dram speed)
Memory Multiplier - x8 ( 172 x 8 should yield ddr3 1376. couldn't find your memory online. make sure your memory voltage and timings are set at least at manufacturer's recommended level, usually around 1.5 or 1.6v. With luck going from 1333 to 1376 will not require any tweaking in itself. I have a 16gb kit myself but I left one stick out since it wouldn't run in triple channel mode without two more sticks anyway)
Loadline Calibration - Level 1
CPU vcore - 1.2875v (this is what I use to hit 4ghz. If this proves stable you can start to lower the vcore a little at a time, making sure to test for stability in order to achieve lowest possible vcore. keep an eye on temperatures)
QPI/Vtt - 1.255v (this is a good starting place, but it may take more. don't go over 1.45 on air cooling. with so much memory you may have to go on up to around 1.295v)