CoolIT Systems RAM Fan and PCI Cooling Booster Review
 

The list of features and specifications for these two CoolIT Systems products make claims that testing has proven to be on the money (for the most part). Both the RAM Fan and the PCI Cooling Booster provide effective cooling for the components they were designed for, cooling these components can lead to better overclocking, and other system features in the area will benefit from the additional air flow washing over them.

http://www.bigbruin.com/2007/coolit_1