P.Core 0 runs 3400mhz like e core

[Krzysztof95]

Hi, my i7-14700k working well but I see less point in cinebench r23 than all,  my 30400, powerlimit is off but in hwinfo I see that pcore 0 works only 3400mhz can you tell what is problem? Is defect and should give back to shop? Picture from hwinfo. Thanks for reply

[Alberto_R_Intel]

Krzysztof95, Thank you for posting in the Intel® Communities Support.

We will be more than glad to assist you with this matter. 

For this scenario, first, it is important to mention that we always recomned to use the computer at stock configurations with the default BIOS settings. 

In order to rule out a possible hardware issue with the processor, please install and run the Intel® Processor Diagnostic Tool, it does an overall test on the unit and if it passes the test it means it is working properly:

https://www.intel.com/content/www/us/en/download/15951/intel-processor-diagnostic-tool.html?wapkw=diagnostic

Cinebench and HWinfo are third-party tools, which means they might have misreadings on the results showing in regards to the processor functionality. If the processor passes the Intel® PDT test, it means it is working as expected and there are no hardware problems with the unit. For additional assistance on those tools, we recommend to get in contact directly with the developers of each tool.

Also, those tools might get details from the BIOS itself. Based on that, we recommended to get in contact directly with the manufacturer of the board to verify that the BIOS is up to date or, if necessary, to gather the instructions on how to update it. 

Any questions please let me know.

Regards,

Albert R.

Intel Customer Support Technician

[Alberto_R_Intel]

Hello Krzysztof95, I just wanted to check if the information posted previously was useful for you and if you need further assistance on this matter?

Regards,

Albert R.

Intel Customer Support Technician

[Krzysztof95]

Hello, I finally now what it was. I do UV. But after I speed up (oc) ram ddr4, so processor was more hungry to energy couse fastest ram = fastest cpu, and after this I need re undervolting cpu. So thanks for trying helps. And for everyone, first ram, after cpu.

[Alberto_R_Intel]

Hello Krzysztof95, You are very welcome. Thank you very much for your response.

Perfect, it is great to hear that you were able to find a solution for this scenario, and thank you also for taking the time to share those details. We are sure they will be very helpful and useful for all the peers looking at this conversation.

Any other inquiries, do not hesitate to contact us again.

Regards,

Albert R.

Intel Customer Support Technician