This message was posted on behalf of Intel Corporation
Thank you very much for contacting the Intel® Communities Team.I will be more than glad to assist you further in respect of the Thermal Throttling inquiry you have.
I would like to mention that these results are expected when performing a stress test to the processor even if the settings were modified to make the microprocessor to a lower frequency. Additionally, you can verify that your heatsink is installed correctly and that you have a good airflow in your case.
Furthermore, please run the Intel® Processor Diagnostic Tool just to make sure that your unit is not having any problem. Please share with us the results.
Well, reapplied the heatsink. Thermal throttling is gone @4.0GHz 1.1volt. But still there on stock settings.
You say it's normal if CPU is under heavy load...
I say, I'm not happy with this. I paid a lot for this CPU and can't use it on stock settings.
I have a properly installed heatsink for sure, and still have throttling issues.
Ran the Intel® Processor Diagnostic Tool , it passed.