Not talking about the heatsink... talking about the fan included with the mobo that goes on the heatsink...
Keep in mind the massive airflow in my case, which is very very large. I have four intake fans, two GPUs, a PSU, and a Scythe KuroKaze as exhaust fans. I am running Prime 95 right now and the temps I get are about the same.
Anyone, if anyone knows of a good northbridge cooling solution, please let me know.