Quad-Pack LED Codes: <ADMIN NOTE: Broken link has been removed from this post by Dell> The LED will flash blue when you hit the "Identify" button.  It is a small button, with a cursive letter 'i' next to it, near the LCD/LED panel that, when pushed, will flash the system blue to help identify that system if kept in a rack or someplace where it is not easy to tell which one you want to work on/look at.  Just push the Identify button again to toggle it off.
Is it normal for the blue LED to flash?  Where can I find the info to decode the Quad-LED display?  I did not see it in the docs I downloaded.  Thanks
PE T310 flashing blue LED