The best mechanism is to see “Event Log”. From here u may get the whole story about windows 2003 server.
OR, u may download a small free tool called <a href=”http://msdn.microsoft.com/en-us/windows/hardware/gg463009.aspx”>WinDbg</a>, / Windows Debugger.
Notes: There is a way “Memory Dump” that is a snapshot of what the system had in memory when it crashed. There r 3 types of that, viz, Samll / mini dump; Kernel dump and Complete or Full dump.
Please look here for <a href=”http://msdn.microsoft.com/en-us/library/ff551063(v=VS.85).aspx”>More Utility Tools</a> for ur purpose….