Motherboard.org posted a review on theSpire SP512S7 CPU Heatsink
Enthusiasts shouldn't be expecting the world from such a small heat sink, but at the same token, there's no chance of breaking the bank, bending the board, or even botching this installation. So in the end, this sink is an excellent choice for the entry level user waiting for a solution to shut up the constant fan whine from your stock heatsink.Spire SP512S7 CPU Heatsink Review