Hi, I have been having problems with my iMac G5 first generation running osx 10.3.9. Its been shutting down randomly. I'm getting the error message AppleSMU -- shutdown cause = -110 in the system log. I was wondering if anyone knew what the cause was or could tell me where to find out or what the meaning of this error message is. The guy in the apple store said nothing more than i would need to replace the whole logic board. I hoped to find another solution. Thanks, Rob.