I have in my hands a tube of Dynex thermal paste. It comes with a card to spread the paste but I have been seeing on the web that you could also just put a BB size dot in the center of the processor and apply the heatsink and it will smash it into a circular pattern. Which method should I use? Also I have thermal pad residue on the heatsink I will be using so I figure I could just clean it off with alcohol, correct? The CPU I will be using is a OEM 4000+ AMD64 socket 939 single core.