Once common, it's now pretty rare to see an all-aluminum extruded K8 heatsink on store shelves. As consumers we've become accustomed to copper, heatpipes, complicated arrays of punched sheet metal fins and exotically designed thermal solutions. In the face of AMD's latest and greatest CPUs, we often overlook the flurry of 65W and 35W processors now being released. Though brand new, these ultra low power environmentally friendly processors emit significantly less heat so generic extruded aluminum heatsinks are one again satisfactory. Who'd have thought it?
Testing low power heatsinks is a bit challenging, since Frostytech's K8 test gear is configured to a 125W synthetic heat load. Given the range of heat outputs of AMD's Athlon64 and Sempron processors, I suppose it is better to test for the worst case scenario than not. The heatsink review should be an interesting exercise; will a simple extruded aluminum heatsink like the Glacialtech Igloo 7222 Light hold its own?
Glacialtech are a Taiwanese thermal solutions manufacturer that has been in business since mid-2001. The company previously focused on OEM clients, but is now getting into retail and setting its sights on the likes of Thermaltake and Coolermaster. In fact, Glacialtech recently launched a line of specialized low profile aluminum chassis for ultra-quiet HTPC applications.
The Igloo 7222 Light heatsink is ideal for energy efficient Socket AM2 AMD processors, or older socket 754/939/940 CPUs. Its 15x70x70mm fan operates at a single speed, and is not temperature responsive. The Igloo 7222 Light has a nice tool free clip mechanism, making a reassuring positive "clip" as it locks down on the central lug of the AMD heatsink retention frame. The unit ships with a pre-applied patch of thermal compound, so installation is a breeze.
FrostyTech's Test Methodologies are outlined in detail here if you care to know what equipment is used, and the parameters under which the tests are conducted. Now let's move forward and take a closer look at this heatsink, its acoustic characteristics, and of course it performance in the thermal tests!
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