Viperlair posted a review on the Noctua NH-D14 Heatsink

This is one of the best air coolers I've had the pleasure of using. The included package, like the Noctua NH-D14 itself is large and provides you with pretty much everything you could possibly need. The SecuFirm2 mounting setup allows you to use this cooler with plenty of different socket setups, and it works really well. It's easy to install, although I did find that even with my Cosmos S, I had to install the cooler by removing the motherboard (I've cut the motherboard tray to allow for in place installation of coolers); the Noctua NH-D14 was just too large and unwieldy to install with the motherboard in the case. Certain motherboard cooling setups, like those found on some MSI boards may limit your installation options although we certainly had no problem installing the Noctua NH-D14 on the two boards we tried including an MSI board. We did however have to swap our OCZ Reaper ram with it's heat-pipe cooling setup to some smaller/shorter Patriot ram to clear the 120mm fan.

Noctua NH-D14 Heatsink Review