Platform Notes: Sun Enterprise 6x00/5x00/4x00/3x00 Systems

Failure to Power Off CPUs

If the attempted de-coupling of the problem CPU from the Solaris software environment fails, the temperature may continue to increase. When the temperature reaches the hard upper operational temperature limit, the system shuts down. In this case, a message similar to the following is displayed:


WARNING: CPU/Memory board 0 is very hot (temperature: 83C)
WARNING: System shutdown scheduled in 20 seconds due to over-temperature condition on CPU/Memory board 0
WARNING: CPU/Memory board 0 still too hot (temperature: 83C). Overtemp shutdown started