Aurora Fan Identification

I received a new Aurora and upon turning it on my fans remained at 100% and would never slow down.  Uninstalling and reinstalling the newest Comand Centre seems to have resolved this fan speed issue however one fan is still quite loud.

I think I have isolated the noise issue to this fan at the back:

http://img10.imageshack.us/img10/5938/aurorag.png

What is this fan named so that I can better communicate with support about which part I need assistance with?