I did not think having such cooling efficiency. The i7 2600K overclocked never exceeds 70 ° C, and runs at 31 ° C in idle. the part being at 26 is exceptional!
The Corsair packaging is solid and clean, the explanation for the installation manual is easy to use as possible. The thermal compound is already in place and, compared to the support, almost as effective as the artic silver 5 (1.5 ° C as far as I could see)
Only the sound of the two ventilos I placed in push-pull around the radiator is audible, as the pump is quiet. And this noise becomes annoying that from 65% speed. 20% in idle, I do not hear them.
Attention to a concern that I have not had: two doses (3 and 4 pins) needed to power.