OC Tools has just finished up a review on the Thermaltake Volcano 6Cu+ HSF for your viewing pleasure. here's a snip:

"Thermaltake has continued its volcano series of heatsinks because of its success in the budget market. Offering average performance at a very affordable price as seen in their Volcano 2 which we have reviewed a few months back, they have come up with a new Volcano heatsink, the Volcano 6Cu+. This is the same as the 6Cu with the copper base but only with a faster fan to go with it. AMD approved, this heatsink is certified and guaranteed to cool your AMD chip up to 1.5 Ghz or probably even more. let's see how it stacks up with our testbed."