We measured the power consumption with the system resting at the Windows 7 desktop, representing idle values.
The power consumption of our entire test system (at the wall) is measured while loading only the CPU using Prime95′s in-place large FFTs setting. The rest of the system’s components were operating in their idle states, hence the increased power consumption values (in comparison to the idle figures) are largely related to the load on the CPU and motherboard power delivery components.
With a low number of add-on components or efficiency-hampering PCB space, Gigabyte's X99M-Gaming 5 is able to show positive idle power consumption numbers, especially when overclocked.
The load power usage levels are equally positive, showing that Gigabyte's decision to opt for the quality of power delivery phases over their quantity, was a smart one.