Enermax has confirmed that their power supplies have been tested and are ready for Intel's upcoming Haswell-based CPU. Some power supplies will be incompatible with Intel's new C6 and C7 power states, which are capable of reducing idle power draw to just 0.05 amps, an impressive feat for Intel.
Enermax says that all current high-end and mid-range models are compatible with the new C states. In fact, all high-end power supplies manufactured by Enermax since the Revolution85+ in 2008 are compatible with the so-called ZERO Load Design, meaning you won't have to upgrade. To make sure your PSU is compatible, check it against the list Enermax has published.