Will be receiving the parts for my new build today. I'm pairing an AMD Phenom II X4 940 Deneb 3.0Ghz with a Gigabyte GA-MA790GP-UD4H mobo and a Xigmatek Dark Knight S1283V cpu cooler. I'm not planning on overclocking the system right away, but may do a slight oc in the future. My question is: should i also add a third-party thermal paste to this setup? is it necessary if I don't overclock? Is it something I can add later if I choose to overclock or must i add it when i set this rig up for the first time? any thoughts on this are much appreciated. this rig is being set up in a CM690 case.