If the switch supervisor engine LED is red or the status is faulty, the cause can be a hardware problem. Another possibility is that the supervisor engine is installed in the wrong slot.
If the supervisor engine is installed in an incorrect slot, it does not boot.
In order to resolve this issue, perform these steps:
If this action returns a failure, create a service request with Cisco Technical Support for further assistance.
If the switch does not boot and fails self diagnostics during the boot sequence, capture the output and create a Cisco Technical Support service request for further assistance.
If no hardware failure is seen in the boot sequence or in the output of the show diagnostics power-on command, create a Cisco Technical Support service request for further assistance.