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X79 Refuses to allow higher-frequency RAM

November 24, 2012 9:08:18 PM

Intel i7 3820 (Quad 3.6 GHz)
Thermaltake CPU Cooler
Corsair Obsidian 800D Tower
Corsair Vengeance 1.5V 2133MHz DDR3 (DIMM) (UNBUFFERED) (10-11-11-30) (32GB) RAM
AMD HD 7770 Graphics GHz Edition

No matter how hard I try, I can't get the memory to run at 1866 or 2133 MHz. My previous settings at 1866 and 2133 were 1.65V (default latency: 10-11-11-30), but the motherboard returns the error "59" (CPU micro-code is not found or micro-code update is failed).
It runs very stable at 1333 (Motherboard Default) and 1600 (with 1.65V, default latency).
I'm not saying it's bad at all even at 1333 MHz, but I paid for 2133 and I want it. Can someone tell me what settings to use? Should I also OC the cpu? Should I increase the voltage even higher? Should I change the latencies?