I know Hyper 212+ is quite popular. But which is the best? I heard water cooling is quite popular. Will I be able to achieve up to 5 Ghz overclock using water cooling? What's the best water cooling solution available for the i5 2500k?
As for the i5-2500k, i think people generally go on air up to about 4.7-4.8GHz but for 5+ i think watercooling is the best option and may even be necessary to keep temps low.