Hello Dylan. sorry for the late reply. when we replaced the controller we replaced the cache battery as well and it didnt initialize because the battery was still charging when we put the new controller in and swapped to the old battery, the old battery charged a little and the then the controller was initialized  and the error cleared. the issue is resolved.   thank you and to [NAME]  for the help!.  
Hello. i have an issue with a controller in dell scv2020. i tried to replace the faulty controller but when replacing it with another controller  the new controller is not recognized.   any ideas?  
dell scv2020 -controller not recognized after controller replacement