Hi casl_at_cmu,
The amber light on the server indicates some sort of error, there should be more information on the system LCD with an error code. You also can hold in the I button on the front of the server for 5 seconds and it should show where in POST it is stopping. Where it is stopping sounds like it is at the end of post where it is supposed to handoff to the OS. What OS is this running? Are all of the drives online in the raid controller? Are there any external devices that it could be trying to boot to instead of the hard drives?
