This message was posted on behalf of Intel Corporation
Thank you for joining the community.
After translating your post, I understand that your Intel® core I7 7700K processor is reporting high temperatures while gaming, allowed to share with you the specs of your processor on this link:
The T junction can go up to 100 C
You use the Intel® Extreme Tuning Utility (Intel® XTU) to performed test on the unit
And also the Intel® Processor Diagnostic Tool to diagnose the processor
Please attach the results to the thread
80c is a perfectly reasonable temperature for a busy PC. If you want to simulate a higher load, you can do so using XTU, as Leonardo has suggested.
Desktop processors publish a temperature threshold, called Tcontrol, which indicates the upper limit for safe operation. By this, I mean that your processor can operate at this threshold constantly, even for its full warranted lifetime, without suffering any thermal degradation. It is ok for temperatures to go above the Tcontrol threshold for brief intervals (spikes), but sustained operation above this threshold is not recommended. While temperatures are above the Tcontrol threshold, it is strongly recommended that your processor cooling fans/pumps/blowers be operating at full speed (100% duty cycle).
You can determine what your processor's Tcontrol threshold is by reading the contents of the IA32 Temperature Target Model-Specific Register (MSR) (address 0x01A2). Bits 16-23 specify the processor's Maximum Junction Temperature (Tjmax), which is the temperature above which throttling occurs, and bits 8-15 specify the Tcontrol Offset. Subtract the Tcontrol Offset from the Tjmax value to determine the Tcontrol threshold. There are many freeware programs that you can use to display the contents of MSRs (I use one called RWEverything).
Hope this helps,