I have i5 4440 and 12GB ram and it usualy works fine (Sometimes I run out of ram depending on what am I doing but I need simply to restart).
Can you run your project using Visual Studio? (Double click YourProjectName.sln in your project folder.) Your PC is realy good see A new, community-hosted Unreal Engine Wiki - Announcements - Unreal Engine Forums.
Install debuging symbols for unreal and write what error is that.