I have a CORE I7 processor and I had spent a year as rad / original fan. When I slightly "overclocked" (factory overclock with my motherboard ASUS Rampage), this was a disaster in temperature especially in summer ... Therefore, I opted for this kit and it's been over a year and a half that I have and it works great! super simple editing (careful check compatibility anyway!) The only downside is that at full power, one has the impression of having reactor turbines -D (very efficient cooling on an I7 950) but even with high heat is never mounted at max decibel :)