I have a client with an ml350 G5 running SBS 2003. The sever has been rock solid the last few years however last week for no apparent reason the server is randomly rebooting. It usually happens in the evening however has occurred during normal working hours. The worrying thing is that there are no errors in the event viewer indicating a possible cause, only notifications staying that the sever shutdown unexpectedly. I'm not sure if the sever is blue screening as I have never seen it happen however I'm stuck on how I can troubleshoot the issue as we are concerned that the sever is manually rebooting several times a day without shutting down correctly. We are looking to replace this server eventually however we are waiting for a leased line installation which we have been waiting for over a year now. Due to their location the internet is incredibly slow (400kb) and we want to host their exchange however cannot migrate their data until the line is upgraded.
Any ideas where we can start as I need to ensure we can resolve the issue