NB. Due to the thermal probe built into the Phenom II CPUs being incorrectly calibrated, they temperatures displayed are 5C cooler than the actual temperature of the CPU. The temperatures are all taken from the same CPU so are all on the same scale.
The Cooler Master GeminII M4 did well in the stock frequency test. The fan did reach its maximum speed, which created some noise but only what you would expect from a normal cooler. Audible, but not loud.
When it came to the overclocked test, things went slightly downhill. No problem with idle but after a while of sitting at load, the CPU hit 77C which happens to be the thermal shut down point of my CPU. There is one main reason for this, the cooler simply isn’t designed to cool an overclocked Hexa core CPU. Something like an energy efficient dual or even quad core would be much more suited to this cooler. Using a lower wattage CPU also means that the fan would spin slower, making the cooler close to silent.