Energy Saver v2.0.1: Server Restart Option

I have two Workgroup Servers, and we just had a power outage. One server automatically restarted and the other server did not. Why?
The Energy Saver control panel v2.0.1 has a Server Setting option in the Preferences menu. The "Restart automatically after a power failure" option is not selected. If this option is selected and the server still does not restart, throw out the Energy Saver Preferences in Preferences Folder and reset preferred Energy Saver options.
Published Date: Feb 18, 2012