Intel has just released more details about the new Haswell processors. The processor sets new benchmarks in terms of energy efficiency thanks to new low power states. The new C6 and C7 states are able to reduce the CPU power consumption to just 0.05A while previous Ivy Bridge processors draw up to ten times more minimum power.
But the positive progress of the CPU technology is subject to certain restrictions, because only few power supplies will be able to deliver stable voltages at such low loads. End users are therefore groping in the dark with no clues if their own power supply will be compatible with the new energy functions of Intel Haswell CPUs. PSU manufacturers usually do not state the possible minimum load of their products.
Enermax today published a PSU compatibility list. All current high-end and mid-range models from Enermax are already prepared for the upcoming Intel processors. They are equipped with a DC-to-DC converter which enables the so-called ZERO Load Design and ready for future Intel Haswell CPUs due this feature. These power supplies will deliver rock-stable voltages even at 0W load. Also the owners of older Enermax power supplies can be relieved: The manufacturer applies the ZERO Load Design already in all high-end power supplies since the Revolution85+ series which has been launched in 2008.