You can lookup your error code(s) on this web page: Error codes 
Hello, colleagues. I have a problem with initial built-in diagnostics in my Alienware R9 desktop . It gives a critical error message with error code 2000-0415 and validation code 98051. It also reports the following error message:  Cables - Check the following cable, jumper, connection or sensor: Fixed Side Digital Signage. The lighting on my desktop is also not working. It means that it sometimes works as usual: it lights up when I switch on the computer and continues to work untilI I switch it off. But almost always when I switch on the desktop, lighting does not go up. I also noticed to the error occurs during initial diagnostics even if the lighting is up.  Can anyone help me to know what this error means and how to fix it ? How can I also fix lighting problems ?  [IMAGE]  
Aurora R9, diagnositcs reveals critical error code 2000-0415