Summary: Finished installing this a little while ago, and feel compelled to share. This fan is NOT for newbies! If you have not built a machine before, you might end up asking for help. My biggest gripe is, because of the placement of the CPU fan plug on my machine, I was not able to have this unit push air out the top of the case.
Summary: Unit does not clear memory if memory has a heatsink. I had to "modify" dim closest to cpu Motherboard = GigaByte GA-Z77X-UD5H, Memory = Patriot Memory Viper 3 Series. Other than that unit is great, nice a quite.
Summary: The Frio OCK CPU cooler is truly a great performing cooler; even with the fans on low it keeps your CPU nice and cool. If you're looking for good looks and good performance, look no further than the Frio OCK from Thermaltake. The Frio OCK is loud on high yes, and from what I can see there really is no need to turn up the fans at all. You can get the same performance from the cooler even with the fans on low.
Summary: I purchased this cooler on eBay for the same price as the original Frio. So no money lost. I do not own the original Frio so I can't compare, but many reviews online for this cooler shows that it isn't any better than the original. Can not remove one fan like the original Frio and cools around 1 Celsius cooler. Not worth the extra $20. Still rating this as a 4 since it cools the same as the other Frio.