I am running the stock AMD heatsink that came with my 8350 CPU. When I am using the PC normally, the fan is spinning at only 3000RPM and the CPU is at 40 C. Whilst gaming, the fan cranks up to 4500RPM and CPU is at 60 C and the PC sounds like a jet engine. Can you guys recommend a very good CPU cooler which isn't too big. I have a small case so something like Noctua NH-U12S will be too big.