The label shows a CWT styled power supply similar to the ones we saw and tested from Xigmatek last week. The first 12V rail is combined with the 5V rail and the 3.3V rail is combined with the 12V2 rail. 12V comes from one of those combinations and the 5V standby rail is generated by its own circuit, similar in design to other switching power supplies in this field. Each side has a major 12V rail and a smaller voltage rail and the combined power of each side is 500W. In this configuration, it is very difficult to find a correct load distribution since the calculation from the ATX norm needs a combined power for the 5V and 3.3V rail together. Still, it is possible to load this power supply according to the norm and that is what we will be doing today.

Source: AnandTech