Arctic Cooler Freezer 7 Pro Question

Couldn't find the correct area to post this because it doesn't apply to OCing but... here's my question...

Well I bought the Arctic Cooling Freezer 7 Pro for my CPU for the PC I'm building and I would like to know. Would I be fine sticking with the pre-applied thermal compound or should I get AS5? I kind of don't want to buy AS5 but if it's totally needed then I will. The reason I ask is because I'm NOT overclocking my E8400 Core 2 Duo 3.0Ghz. Usually I see people applying the AS5 if they are doing heavy Ocing.

Thanks

Thanks but now... I have another question... I was unboxing the Cooler today not to long ago and when I took it out I accidentally hit the plastic cover, covering the thermal paste on it and smudged it in the upper left hand corner a tiny bit. Not much so I don't think it will make a difference. I mean it didn't take off all the corner just if you were to hit you finger on the paste real lightly it just took a spec off. it made it a little smudged. The rest of the paste is in perfect condition the way it came. Thermal Paste spreads when heat is applied to it right?

Thats good to hear. Well I had about $20 left over from the buying of my build in my Paypal account so I went ahead and bought some AS5. It will make a difference in Temps when I'm not OCing right? I just though it's better to have it in case I decide to OC later down the line.

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^ yep, NP