I'd like to share some advice that may be valuable to other system builders. To simplify my builds while allowing for max overclocking, I go with liquid-cooled CPU and stock-cooled GPU. I've built 2 liquid-cooled CPU rigs so far, both with Corsair Hydro series as the CPU cooling solution. In both cases, the radiator, pump, and cooling block are excellent quality, but the included 120mm fans that cool the radiator are complete crap: noisy, with a tinnitus-inducing metallic whine at high speeds, and weak air circulation. I get much better results by replacing the included Corsair fans with Antec 3-speed "cool blue" LED Tricool 120mm fans. With Antec fans, I get better air flow with about 0.1-0.2 GHz higher OC at equivalent load, less noise, and no obnoxious metallic whine. Also, it may be possible - just a guess - that the icy blue LEDs improve the overall cooling profile compared to unlit fans.
So, if you're building with Corsair Hydro, be sure to pick up a pair of Antec 3-speed LED Tricool 120mm fans. Make sure to get the 3-speed fans with the manual switch. The switch will have L/M/H settings. Set to 'H' (High) for both fans. You do *not* need to connect the fans to the Corsair Hydro cooling block. Just connect the fans to your PSU and switch the fans to High.
[Edit.] Here is the Antec fan I use profiled at Amazon. http://amzn.com/B00066FHEW
So, if you're building with Corsair Hydro, be sure to pick up a pair of Antec 3-speed LED Tricool 120mm fans. Make sure to get the 3-speed fans with the manual switch. The switch will have L/M/H settings. Set to 'H' (High) for both fans. You do *not* need to connect the fans to the Corsair Hydro cooling block. Just connect the fans to your PSU and switch the fans to High.
[Edit.] Here is the Antec fan I use profiled at Amazon. http://amzn.com/B00066FHEW