I have the same F/H and Arctic Silver5 as you just got. I use a coffee filter to clean the top of the CPU. Coffee filters are lint free and just abrasive enough to clean the little grooves out ont the CPU. I use a little Rubbing Alcohol also but don't get the filter to wet. Just enough to get the rest of the paste off. The compound should be put in the middle of the CPU about the size a grain if rice about 3/8 to 1/2 long. You don't want to put to much on. By the way doesn't the heat sink already have silver paste on it? Thats good paste thats on there already. 90% of all silver paste is the same anyhow.