My DX79SI with 3930K and Windows 7 becomes totally unresponsive. Keyboard, mouse, or USB fail to cause system to respond. The only recovery is power off/on. I can't find a NMI board. How does one force a dump or otherwise identify the problem?
Our recommendation to identify the problem is unpluging the power cord, remove all non-basic components, connect the power cord back in and try to boot up the system. If problem does not take place, try installing the other components one at the time until you find out which is the conflicting one. Test the system with minimum memory installed.