I want to overclock an Intel pentium dual-core E5200, which CPU cooler will be better suited? Zalman CNPS7000C-CU Led Arctic Freezer 7 pro I don't know much about Arctic Freezer cpu coolers, they just arrived in SA. I do know that the Zalman is Pure copper, so shouldn't that provide better heat conductivity? It also weighs more than the Arctic Freezer Pro. I can get them both for about the same price, but so far I'm leaning towards the Zalman. Do you think that the above CPU coolers are too much? I just wanna take the e5200 above 3GHz.