Customer has 2007 7.0 with 12 CI trunks and is going into system startup alarms. Sent power supply with no luck. I noticed customer tried programming multiple line ringing and assignments with no luck as they were out of maintenance ( they called us to fix on RAD) generally, system start ups were either power or software issues only. How can we rule out backplane on MICS? Or should i try crash and reset database ?