That's what I thought. P7P55D Premium is relatively new to the market, but it's intel P55 Chipset is supposed to be solid. Anyhow, I already changed the mobo, and the problem is still here.
Looking at the P55 diagram, it's easier to see how a bios pr driver problem on the GPU can affect the USB. http://techreport.com/articles.x/17513
I cant imagine I'm the only one having this problem. Is anyone else having a P55 / USB problem?