My build is an Intel i7-5820k on an Asus X99-A board with G.Skill DDR4 2666 15-15-15-35 RAM and a Kraken X61 cooler.
After playing around with 5-way overclocking and manual tinkering, I have finally found a simple setting.
With the XMP 2666 RAM, the base clock is at 125, and my multiplier is at...