Galaxy Nexus, Dell XPS 8500 and USB Ports

I knew this before, but just proved it once again, that not all USB ports on my new Dell XPS 8500 are equal.

I realized it when I tried to connect my Galaxy Nexus to my new Dell so that I can do android development.  All 4 ports on the front and on the top of computer failed to establish the connection, but the port and the left side of the top roll worked.  In fact, I don't event need to explicitly install the Samsung driver, and everything just started working.  So ... strange.