It is a licensing restriction. Windows Server supports up to 64 GB on 32-bit versions: http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85)

It is a licensing restriction. Windows Server supports up to 64 GB on 32-bit versions: http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778(v=vs.85).aspx#physical_memory_limits_windows_server_2008 http://msdn.microsoft.com/en-us/library/windows/desktop/aa36...