I'm running three Corsairs closed loops on my PC's. I'm using two Corsair Hydro Series H80 Extreme Performance Liquid CPU Coolers for mine and my sons PC and I'm running one Corsair Hydro Series H60 High Performance Liquid CPU Cooler on my Ubuntu server.
Couldn't be any happier with these closed loops setups and they're good for 5-6 years before you need to think about changing them.
It all depends on how far you want to push your CPU if closed loop is not enough then you might want to look into some open loop cooling blocks, may I ask what's the reason for overclocking your system? just for experimenting? That closed loop you picked up should keep your cpu nice and freezing crispy if you don't go overboard.
Last time I overclocked a CPU it was if I remember correctly an i5 and I pushed it to 4.6ghz with a EvO 212 which is air cooling not liquid.
yea doing EvO 212 and getting almost 4.7 with that now and i dont go over board very happy to go that speed im fine for now thanks for your post setting it up tonight