Summary: Overall, the Thermalright HR-05 achieves impressive results. The extra mass and high-quality workmanship of the High-Riser series translate into one of the highest performing chipset heatsinks. The main problem with this heatsink is its flimsy retention mechanism, which can easily let go of the heatsink, causing damage and destruction.
Because of its size, it might make your computer a little more cramped, which means more steps or extra care when performing maintenance.
Conclusion: The HR-05 is meticulously put together, with the quality control an obvious forte of ThermalRight. The mounting system is an elegant solution to the varying hole width that motherboards provide and keeps the cooler in place while it does its trick. The fan mounting system is a little fiddly and seems like a bit of an afterthought but at least there is a way to use your 70mm fan.
Pros: Cools well, Immaculate machining, Secure mounting system
Cons: Flawed; can’t be used with most performance motherboards
Conclusion: This heatsink does exactly what it sets out to do; cool. It does the job well, and it can be run easily in either passive or active forms. However, finding a motherboard that needs this level of cooling is difficult, and unless you want to sink £15 into this cooler, plus Thermalright’s £15 PWM cooler too, you won’t be able to use it with most modern motherboards.