[DD] The ASUS boards for the eco-conscious

Any manufacturer's motherboard line-up just isn't complete in today's world without the inclusion of boards that claim to save energy for a cleaner environment.

ASUS, as you'd expect, isn't one to miss out. It claims to "recognise the importance of green computing" and has announced a new series of ASUS EPU motherboards.
The EPU motherboards provide a hardware-based energy saving solution that ASUS tells us "is more stable than other purely software-driven solutions". The EPU boards boast a 80.23 percent CPU power saving and enhanced energy efficiency ratings of up to 96 percent - "helping users in the cause to save energy for a greener environment," ASUS says.

The EPU is an automatic energy saving chip which digitally monitors CPU usage levels and adjusts the delivery of power to the CPU accordingly. According to ASUS, "the EPU is thus able to provide users with the ability to moderate power for higher performance if required, or save up to 80.23 percent CPU power under low processing periods for the best possible performance with the least amount of power."
In addition, ASUS' EPU boards also offer AI Gear3+ which allows users to tweak the CPU frequency and vCore voltages as required. Working alongside the EPU, ASUS states that AI Gear3+ can help users achieve power efficiency ratings of up to 96 percent. There's even a software UI that shows users just how much electricity they're saving - all in real-time.
The range of EPU motherboards is currently as follows:

X48 Chipset Models	P5E3 Premium/WiFi-AP @n, RAMPAGE FORMULA, P5E64 WS Evolution
X38 Chipset Models	P5E3 DELUXE/WiFi-AP @n, P5E3 DELUXE, P5E3, P5E, MAXIMUS Extreme, MAXIMUS Formula, P5E64 WS PRO
Nvidia nForce® Chipset Models	P5N-T DELUXE, P5N-D, Striker II Extreme, Striker II NSE, Striker II Formula, P5N64 WS Professional
P35 Chipset Models	P5K PRO, P5K/ EPU, P5K SE/EPU

Source: https://www.hexus.net/content/item.php?item=12591