Not sure if it will help but you might try flashing the latest BIOS.
I purchased the same motherboard about a week ago, it came with BIOS version F2, the latest is F4.
In "Advanced Memory Settings":
System Memory Multiplier- 1600
Performace Enhance -Standard
DRAM Timing Selectable-Quick
Channel A Timing Settings-Set you memory manually in BIOS,as per sticker on it.
Then in "Advanced Voltage Setting",set:
QPI/Vtt Voltage- 1.10-1.12V
System Agent Voltage- 0.95-0.96V
PCH Core- 1.08-1.10V
DRAM Voltage -1.64-1.66V
You can also flash to latest BIOS
F5 or
F8.