1 2 Previous Next 19 Replies Latest reply on Oct 20, 2017 12:47 PM by Intel Corporation

    Why does my cpu reach speed higher than the max turbo speed?

    Alderasus

      Hello everyone,

       

      I hope that you are fine and having a nice last morning of the week. Today, I got strange numbers on my Task Manager CPU performance information. I was working on data modelling using 8 cores for the modelling and one more core for the whole code. Suddenly, I saw that the speed is reaching sometimes the speed of 3.66 GHz. Why does my cpu reach speed higher than the max turbo speed given that:

      • my cpu is i7-6950X cpu.
      • its Processor Base Frequency 3.00 GHz
      • its Max Turbo Frequency 3.50 GHz
      • its Intel® Turbo Boost Max Technology 3.0 Frequency 4.00 GHz, however, this option is disabled, so no possibility of reaching something more than the Max Turbo Frequency, which is 3.50 GHz.

       

      I searched the web, most of the cases are focusing on speed when it is higher the Base speed, where the reasonable answers to such cases are about the fact that the cpu uses the Max Turbo. However, in my case, my cpu is reaching speed more than not only the Base, but also the Max Turbo Frequency with having the intel Turbo Boost Max Technology 3.0 disabled. Could you please answer my question? Thank you very much.

       

      Best regards,

      Alderasus Ghaliamus

        • 1. Re: Why does my cpu reach speed higher than the max turbo speed?
          Intel Corporation
          This message was posted on behalf of Intel Corporation

          Thank you very much for sharing that information with the Intel® Processors communities. We will do our best in order to provide the information you are looking for.
           
          In order to confirm if the values that you are seeing are not related to a misreading, please run the Intel® Processors Diagnostic Tool, it will do an overall test on the processor and it will report the clock speed detected on the unit. Please let us know the results of the test:
          https://downloadcenter.intel.com/download/19792/Intel-Processor-Diagnostic-Tool
           
           Any further questions, please let me know.
           
          Regards,
          Alberto R
           

          • 2. Re: Why does my cpu reach speed higher than the max turbo speed?
            Alderasus

            Dear Mr Alberto R,

             

            Always, thank you very much for your appreciated help. I installed the diagnostic tool, however, windows 10 did not recognise the exe file publisher (should I worry?). Anyway, during the installation I was asked to install 4 different requirements 3 of which were installed and the last one failed. Anyway, I continue the installation and I did the test, it seems that all the tests could be done except one test, which is QPI link rate Test. However, I'm not sure if such test was not done because of the missing part in the installation or because my cpu does not support the test functionality.

             

            The results you asked to be provided are:

            • Expected CPU Frequency is -- 3.00
            • Detected CPU Frequency is -- 3.70001
            • Expected Base Clock -- 100 MHz
            • Detected Base Clock -- 100 MHz
            • 64 degrees C below maximum
            • and in the test summary window I got a big pass with a green background.

             

            Do you think such numbers are normal or abnormal, what is your advice anyway? Thank you very much and very sorry for bothering you with my new PC.

             

            Best regards,

            Alderasus Ghaliamus

            • 3. Re: Why does my cpu reach speed higher than the max turbo speed?
              N.Scott.Pearson

              Your processor utilizes a DMI connection, not QPI, so no issue to worry about there.

               

              Your detected CPU frequency seems odd. I wonder, do you have any overclocking enabled in BIOS setup?

               

              ....S

              1 of 1 people found this helpful
              • 4. Re: Why does my cpu reach speed higher than the max turbo speed?
                Alderasus

                Dear Mr N. Scott Pearson,

                 

                Thank you for the time you spent reading and answering my concerns. Regarding the possibility of the overclocking being enabled in BIOS setup, please let me share you the following points and I wish you could tell me what do you think. And, please, I beg your patience if you found in my shared information and images something by which my case should be obvious for me, it is only my relevant ignorance and your profoundly appreciated patience.

                 

                • I used to have the Turbo Boost Max Technology 3.0 enabled (where my cpu used to reach numbers beyond 3.5 GHz and around the 4.0 GHz).
                • When I say 'enabled' I'm talking about the installed software of Turbo Boost Max Technology 3.0.
                • However, I disabled it through the same software. Please, see the attached file: photo 1.
                • Since I disabled it, I did not get any number beyond the 3.5. Such thing means the mentioned software works.
                • Did I check the BIOS after I disable it? No, relaying only on the software and especially that I got the impact on the CPU speed reading.
                • Until I got my current issue shared with you. Until I got speed more than 3.5.
                • I did read your appreciated reply, I checked the BIOS and I attached all the possible photos by which you can explore my issue more. The photos are A,B,C and D.

                 

                Thank you again, for your time and help.

                 

                Best regards,

                Alderasus Ghaliamus

                • 5. Re: Why does my cpu reach speed higher than the max turbo speed?
                  N.Scott.Pearson

                  I am not seeing anything obvious. I ask again: are you watching the temperatures? Turbo will only work if there is sufficient thermal margin...

                  ...S

                  1 of 1 people found this helpful
                  • 6. Re: Why does my cpu reach speed higher than the max turbo speed?
                    Alderasus

                    Dear Mr N. Scott Pearson,

                     

                    Thank you again for your appreciated time. Regarding the temperatures, based on two windows (Thermal Controls by Alienware + CAM dashboard), all the temperatures and the fans in the normal ranges. Focusing on the cpu temperature:

                    • through my data modelling, I did not say temperature more than 46 C.
                    • through the Intel Processor Diagnostic Tool, I performed two tests:
                      • first test ended with 64 C.
                      • second test ended with 71 C.

                     

                    If there is more needed details about the temperatures, please let me know.

                     

                    Best regards,

                    Alderasus Ghaliamus

                    • 7. Re: Why does my cpu reach speed higher than the max turbo speed?
                      N.Scott.Pearson

                      Hhmmm, the processor is nice and cool throughout; nowhere near hot enough to prevent Turbo operation.

                       

                      I am not sure what else to tell you; this is moving beyond my knowledge...

                      ...S

                      1 of 1 people found this helpful
                      • 8. Re: Why does my cpu reach speed higher than the max turbo speed?
                        Alderasus

                        Dear Mr N. Scott Pearson,

                         

                        Thank you very very much for your appreciated time. You helped me a lot with your questions and trying explaining the issue.

                         

                        I'm still looking forward to any possible explanation from the community if someone could help.

                         

                        Best regards,

                        Alderasus Ghaliamus

                        1 of 1 people found this helpful
                        • 9. Re: Why does my cpu reach speed higher than the max turbo speed?
                          Intel Corporation
                          This message was posted on behalf of Intel Corporation

                          Hi : You are very welcome. Thank you very much for providing that information. In this case we will do further research on this matter. In order for us to be able to do that, we just need to verify a few details, please install the SSU tool (System Support Utility):
                          https://downloadcenter.intel.com/download/25293/Intel-System-Support-Utility

                          Once you do that, the tool will allow you to save the information as a file, please attach it to this thread, in order for us to see it. To attach a file, you must click "Use Advanced Editor" in the top right corner of the response box, then the "attach" option will appear in the bottom right corner of the response box.

                          Thank you very much to for the information provided above.

                           

                          Any questions, please let me know.

                          Regards,
                          Alberto R

                          1 of 1 people found this helpful
                          • 10. Re: Why does my cpu reach speed higher than the max turbo speed?
                            LFM

                            I've seen this with my own CPU.

                            Intel® Core™ i7-4960X Processor Extreme Edition (15M Cache, up to 4.00 GHz) Product Specifications

                            I use an Asus X79 mainboard that has a performance option in the Bios/firmware (It does not mention anything about max turbo frequency for this feature the Bios/firmware).

                             

                            When I enable that function my CPU runs 4.5GHz (4512 MHz to be precise) The CPU uses a Corsair H110i liquid cooler. -> Temperature does not go beyond 49 C at this speed

                            If I exchange that to a normal fan based cooler it still reaches 4.1GHz (Above the turbo frequency specs).

                             

                            The speed only goes beyond the 4GHz when the performance option is selected in the Bios/firmware.

                             

                            You may have an option like that in your Bios/firmware which causes the speeds to go above your max turbo frequency.

                             

                            Regards,

                            Leon Merts

                            1 of 1 people found this helpful
                            • 11. Re: Why does my cpu reach speed higher than the max turbo speed?
                              Alderasus

                              Dear Mr Alberto R,

                               

                              Thank you very much for your time and efforts. I'm sorry to be very late in my response, I was abroad the last few days so I could not run the SSU tool. I have attached the produced file and I'm looking forward to your response. Thank you.

                               

                              Best regards,

                              Alderasus 

                              • 12. Re: Why does my cpu reach speed higher than the max turbo speed?
                                Alderasus

                                Dear Mr Leon Merts,

                                 

                                Thank you so much for sharing your experience. I agree with you that it is very possible that it could be Alienware-relevant settings. For the sake of which, I shared most of the BIOS settings in a previous response. Now I'm waiting for another possible response and beside that I will consider your situation and try to search my PC settings considering what those settings made by Alienware to enhance the performance.

                                 

                                Best regards,

                                Alderasus

                                • 13. Re: Why does my cpu reach speed higher than the max turbo speed?
                                  Intel Corporation
                                  This message was posted on behalf of Intel Corporation

                                  No problem at all. Thank you very much for providing the file. We will start a research on this matter, as soon as I get any updates I will post all the details on this thread.
                                   
                                  Any questions, please let me know.
                                   
                                  Regards,
                                  Alberto R
                                   

                                  • 14. Re: Why does my cpu reach speed higher than the max turbo speed?
                                    Intel Corporation
                                    This message was posted on behalf of Intel Corporation

                                    I just received some updates on the research we were doing on this case. Based on that information, I just wanted to let you know that the max frequency given in the specifications (up to 3.50 GHz) is a rate reached by the standard of the processor family/model. Some processors can reach more than the specified limit and others may not reach the limit. This is actually an expected behavior and if there are no issues with the PC then it seems the processor is working fine.

                                    Any questions, please let me know.

                                    Regards,
                                    Alberto R

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