System Crashed Using Intel® Core™ i7-7700K Processor

When the 4th core of the processor is disabled, the system is stable. System crashed inside OS.

Issue began since building the system.

Troubleshooting Steps:

1) Test process using mPrime.
2) Test processor using a different motherboard, memory or power supply unit.
3) Try a different configuration.
4) Perform a processor swap test.
5) Check the temperature.

If these steps do not work, contact Intel® Customer Support