slight overcolock? I only do major overclocks. I would go with an h80i or the h100i for liquid cooling. Air cooling is risky and you can only overclock a bit. I never use a fan. I always use a liquid cooling situation. @daze23 might know more about overclocking on air, as I just know overclocking with liquid cooling.tbh, u can squeeze much more out of it.
What cooler do you recommend for a slight overclock btw? I heard hyper 212 can withstand pretty good.