I have really changed how I do my overclock testing with motherboards. Every single test you see in the main section is repeated in the section that follows, including power consumption. As I test more products, a good picture of overclocking efficiency should emerge, which should prove interesting when it comes to those products that are 100% overclocking-oriented. I have grouped the results into sections here, and all Intel products are tested with 4.6 GHz CPU speed. Memory speeds vary depending on the platform's ability. I'll report it here if a board fails to pass one of these tests, I need to increase voltages, or am perhaps allowed to drop voltages.
Overclocking with the ASRock Z87E-ITX was far easier than expected given the disappointing experience I had with ASRock's Z87 Extreme6. To reach the 4.6 GHz clock I normally use for overclock testing, I used the provided 4.6 GHz profile in BIOS and adjusted the voltage option to what I knew my CPU needed. Bumping the memory to 2666 MHz from 1333 MHz was as simple as enabling the XMP option in BIOS while making sure DIMM voltage was as high as necessary, which meant that I only changed four options in BIOS to complete my overclock; simply perfect.