Well I took a dripping towel and rubbed it all over the chipset to make sure it was all clean, I used a bit of hand soap as well. But when I turned on my computer, I heard a little pop and smoke started coming out of my computer. What happened??? Just kidding. I took a dry towel and rubbed it gently on the chipset, there really wasn't much thermal grease on it. I put some AS5 on it and snapped the fan on (it was quite a chore to do it, as I had to bend one of the pins a bit so it fits).
Everything works fine, and very silently, I can barely hear it. And my temps went down. 🙂