AMD's Cool 'n Quiet is a function of their CPUs that deals with down clocking the CPU when not under load, to save power and reduce operating temperatures. You are running an Intel CPU, which will implement Intel's version of power saving technology, so it has no bearing or application toward your system. I would ignore the message, or go specifically to Asus's website and do my own investigation of available utilities for your particular motherboard.
On another note, the power saving features of either brand of CPU are on by default, enabled through BIOS, and supported by Windows. You don't need a utility for these features to function correctly.
Unless you have Windows XP, you don't need to install a driver. From Vista and beyond, Windows natively supports the two most common power saving features from AMD and Intel (and some ACPI specifics as well). So just enable in bios and you are good to go. It will save you a ton of electrical power, and depending on your location, a ton of money as well. Also prolongs the life of the cpu and various components.