When the system boots, system firmware checks the memory configuration against the rules described in DIMM Population Rules. If any violations of these rules are detected, the following general error message is displayed.
Please refer to the service documentation for supported memory configurations.
In some cases, the server boots in a degraded state, and a message such as the following is displayed:
NOTICE: /SYS/PM0/CM0/CMP/CORE8/P0 is degraded
In other cases, the configuration error is fatal, and the following message is displayed:
Fatal configuration error - forcing power-down
In addition to these general memory configuration errors, one or more rule-specific messages is displayed, indicating the type of configuration error detected. To identify the DIMMs affected, use the fmadm faulty command as described in Check for Faults.