I just built this system a few minutes ago and its my first build. I turn the system on and everything runs fine except this loud fan rattle i believe is from the PSU. The PSU is a Seasonic S12II 620W
Here is a vid of how loud it is http://www.youtube.com/watch?v=jO3eXIZHNDc
Here is a vid of how loud it is http://www.youtube.com/watch?v=jO3eXIZHNDc