"In addition to the performance and near silence, the NH-L9a was extremely easy to install. The whole process took less than 5 minutes and I would have to agree with the description of the installation found on the Noctua site where they call it 'child's play'."
Jason Kohrs - BigBruin
Noctua NH-L9a low profile AMD CPU cooler review by BigBruin - Introduction & Conclusion.