OCIA.net takes a look at the EnzoTechnology Ultra-X Heatsink in their latest review.

I will be installing the Ultra-X heatsink in my Intel test system. You can see just how large the Ultra-X is compared to the stock Intel cooling solution. The hardware needed for this install includes the backplate, four spring-loaded thumb-screws and four clear washers. Be extra careful when handling these washers, since they are very difficult to see. I lost one during installation and it took me half an hour to find it. Colored washers would have worked much better.

EnzoTechnology Ultra-X Heatsink Review