If you want it to throttle down more (reduce heat, noise, and energy consumption while idle), disable speedstep, and download crystalcpuid. AMD and Intel multiplier reducing mechanisms usually stop at 6x multiplier. This program allows you to dynamically change voltage at three different multiplier levels (down to 4x multiplier in many cases), and dictate at what usage (percent of utilization) a jump or decrease occurs between the levels. You can even set it to go from high or medium right to low, and from either low or medium directly to high, if you don't want the transitions following the hierarchical scheme. You can adjust the changes to make the system more responsive (move to higher multiplier faster than speedstep would), or to linger so small jumps in utilization don't make it rev up to cover a spike that is short lived. You can also make it do these multiplier changes based on an average of the cores (good if you multitask or have lots of multicore utilizing programs), or a breakpoint on any core (single-threaded apps will run up core0 first). Just be sure to set the power scheme in windows to "always on." You want to find the lowest voltage you can by running prime95 or orthos on each core until there is an error. Expect some freeze-ups if you go too fast. If you set "multiplier management" and the computer freezes right away, you still have hardware/bios throttling enabled, and you can have two things accessing it at once- diable it and try again. I like the program because it shows you the current fsb, cpu, ram, and other speeds compared to stock, and gives you a %overclock figure.
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