This message typically means a hardware failure.
If you plug a console into the switch and watch it boot, you should see a particular message indicating POST failure on a specific line, something like this:
POST: PortASIC CAM Subsystem Tests : Begin
TCAM (asic:5) walking-one test failed
Write: 80_00000000_00000000-00_00010000_00000000
Read: 80_00000000_00000000-00_04000000_00000000
POST: POST Failed
POST: PortASIC CAM Subsystem Tests : End, Status Failed
POST: CAM test failed
If this switch is under contract, it should be RMA'd
