13 Replies Latest reply on Nov 14, 2016 5:27 PM by Intel Corporation

    i7 6700K temperature too high under load

    damian21

      I am in the process of building a computer, and I am having problems with high CPU temperatures under load.

       

      My system consists of:

      Processor: Intel i7 6700K (stock settings)

      Motherboard: ASUS Z170-Deluxe (all settings are default)

      Cooler #1:  Swiftech H220 X2 240mm all in one water cooler.

      Cooler #2:  Corsair H115i 280mm all in one water cooler.

       

      With stock CPU settings (i.e. all motherboard  settings are default), when I run a stress test, I am seeing the  CPU core temp jump almost instantly to 75 C and then increase over several minuets to 80 C.  It is my understanding that for this processor, Tcase should be around 64 C, and that core/package temps of 80 C are abnormally high, given that the CPU is at stock settings and water cooled.

       

      I originally assumed the problem was due to my water cooling system.  I contacted the water cooler's technical support.  They helped me troubleshoot the cooler and I remounted the water block several times. In the end, they told me they believed the cooler was working normally.  I was still troubled by the high temperatures, so I decided to buy a different brand of water cooling system. After trying the second cooling system, I am still seeing nearly identical temperatures. At this point I believe I have ruled out the cooling system and suspect the CPU. 

       

      Here is a graph of what I am seeing…

      Untitled2.jpg

      Can you help me figure out what is wrong?

      Your help is greatly appreciated.

        • 1. Re: i7 6700K temperature too high under load
          Intel Corporation
          This message was posted on behalf of Intel Corporation

          Hello damian21:
           
          In this case, even though as you mentioned before the t-case of the processor 64°C, that does not mean the temperature cannot get higher than that value, it can, and it is expected depending on the load of work, especially if you do an stress test.
           
          The risky temperatures are when it reaches 90°C or 95°C, but when it does that the PC will go off by itself, because the processor has that feature included.
           
          So, as long and the PC is not throttling, or getting freeze or going off by itself, the temperatures should be fine, and so is the processor.
           
          Now, in regard to the image you gave us, that is a 3rd party tool, so it could have misreading, we have our own tool that we rely on, and if the processor passed the test of it then is because it is working fine.
           
          You will be able to install our tool from the following link, second option to the left, it does an overall test including a temperature test:
           
          https://downloadcenter.intel.com/download/19792/Intel-Processor-Diagnostic-Tool
           
          Any questions, please let me know.
           
          Alberto
           

          • 2. Re: i7 6700K temperature too high under load
            damian21

            Thank you for your reply.

             

            I have run the Intel Processor Diagnostic Tool. The results are attached below.

             

            It looks like IPDT runs much cooler and is reporting that everything passes.  I do notice some interesting differences in how the CPU behaves when running IPDT vs. Prime95 stress test.  When I run Prime95 my motherboard reports that the processor is at 4.2 GHz and the core voltage is significantly higher.  When I run IPDT my motherboard reports that the processor is at 4.0 GHz and the core voltage is much lower.  My understanding is that 4.2 GHz is the expected turbo clock speed.  Is it unusual that IPDT is not running at 4.2 GHz?

             

            Damian

             

            --------------------------------------------------------------------

             

            --- IPDT64 - Revision: 3.0.0.25.W.MP
            --- IPDT64 - Start Time: 10/26/2016 9:31:52 PM

            --------------------------------------------------------------------
            Processor 1
            --------------------------------------------------------------------
            Genuine Intel CPU Test
            Module Version: 1.0.12.64b.W
            Start Time: Wed Oct 26 21:31:52 2016
            Test Result - PASS
            Expected: GenuineIntel
            Detected: GenuineIntel
            End Time: Wed Oct 26 21:31:52 2016
            Total Time:  seconds: 0
            --------------------------------------------------------------------
            Temperature Test
            Module Version: 1.0.12.64b.W
            Start Time: Wed Oct 26 21:31:52 2016
            Test Result - PASS
            Expected: Greater than 1 degrees below max
            Received: 67 degrees below max
            End Time: Wed Oct 26 21:31:52 2016
            Total Time:  seconds: 0
            --------------------------------------------------------------------
            CPU Brand String Test
            Module Version: 1.0.12.64b.W
            Start Time: Wed Oct 26 21:31:52 2016
            Test Result - PASS
            Expected String Parts: As Defined in BrandString_LocalConfig.xml
            Detected: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
            End Time: Wed Oct 26 21:31:52 2016
            Total Time:  seconds: 0
            --------------------------------------------------------------------
            CPU Frequency Test
            Module Version: 1.0.14.64b.W
            Start Time: Wed Oct 26 21:31:52 2016
            Test Result - PASS
            Processor Name: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
            Expected CPU Frequency: 4.00
            Detected CPU Frequency: 3.96206
            Expected Base Clock: 100
            Detected Base Clock: 101.591
            QPI link rate Test - Not supported.
            Skipping QPI link rate Test.
            End Time: Wed Oct 26 21:31:53 2016
            Total Time:  seconds: 1
            --------------------------------------------------------------------
            Floating Point Test
            Module Version: 1.0.10.64b.W
            Start Time: Wed Oct 26 21:31:53 2016
            Test Result - PASS
            Million Floating Points per Second, MFLOPS: 619.2
            Error: 0
            --- Floating Point Test Passed!!!---
            End Time: Wed Oct 26 21:31:55 2016
            Total Time:  seconds: 2
            --------------------------------------------------------------------
            Prime Number Generation Test
            Module Version: 1.0.10.64b.W
            Start Time: Wed Oct 26 21:31:55 2016
            Test Result - PASS
            Operation Per Second: 7.31037e+006
            Error: 0
            --- Prime Number Generation Test Passed!!!---
            End Time: Wed Oct 26 21:31:57 2016
            Total Time:  seconds: 2
            --------------------------------------------------------------------
            Cache Test
            Module Version: 1.0.10.64b.W
            Start Time: Wed Oct 26 21:31:57 2016
            Test Result - PASS

            --- Reading Cache Size --- 

            - Detected L1 Data Cache Size --> 32
            - Detected L1 Inst Cache Size --> 32

            - Detected L2 Cache Size --> 256
            - Detected L3 Cache Size --> 8192

            Cache Size Test Passed!!!

            End Time: Wed Oct 26 21:31:57 2016
            Total Time:  seconds: 0
            --------------------------------------------------------------------
            MMXSSE Test
            Module Version: 1.0.10.64b.W
            Start Time: Wed Oct 26 21:31:57 2016
            Test Result - PASS

            --- Determining MMX - SSE capabilities ---
               --- CPU FEATURES DETECTION FOR ---
                         ---        MMX SSE       ---
            MMX   - MMX Supported --> Yes
            SSE   - SSE Supported --> Yes
            SSE2   - SSE2 Supported --> Yes
            SSE3   - SSE3 Supported --> Yes
            SSSE3   - SSSE3 Supported --> Yes
            SSE4.1   - SSE4.1 Supported --> Yes
            SSE4.2   - SSE4.2 Supported --> Yes
              --- MMX SSE - capabilities check complete ---
            MMX Test Result --- PASS
            SSE Test Result --- PASS
            SSE2 Test Result --- PASS
            SSE3 Test Result --- PASS
            SSSE3 Test Result --- PASS
            SSE4.1 Test Result --- PASS
            SSE4.2 Test Result --- PASS

            End Time: Wed Oct 26 21:31:57 2016
            Total Time:  seconds: 0
            --------------------------------------------------------------------
            AVX Test
            Module Version: 1.0.11.64b.W
            Start Time: Wed Oct 26 21:31:57 2016
            Test Result - PASS

            --- Determining AVX AES PCLMULQDQ capabilities ---
               --- CPU FEATURES DETECTION FOR ---
                        --- AVX/AES/PCLMULQDQ ---
            AVX   - Advanced Vector Extensions Supported --> Yes
            AVX OS Support   - AVX Operating System Supported -->  Yes
            AES   - Advanced Encryption Standard Supported --> Yes
            PCLMULQDQ  - Polys Carry-Less Multiply Supported --> Yes
            --- AVX AES PCLMULQDQ capabilities check complete ---
            AVX Compare Test Result --- PASS
            AES Test Result --- PASS
            PCLMULQDQ Test Result --- PASS

            End Time: Wed Oct 26 21:31:57 2016
            Total Time:  seconds: 0
            --------------------------------------------------------------------
            IMC Test
            Module Version: 1.0.7.64b.W
            Start Time: Wed Oct 26 21:31:57 2016
            Test Result - PASS
            --- Reading Memory Size ---
            Detected Memory Size is --> 32.00GB
            --- Subtest - Memory Size Test Passed!!!  ---
            --- Integrated Memory Controller Stress Test ---
            Memory to be allocated = 1048576 byte
            Memory Allocated.
            Test 1 Ones and Zeros Moving Inversions write operations - Passed
            Test 1 Ones and Zeros Moving Inversions verification operations - Passed
            Test 2 32Bits Sliding Ones write operations - Passed
            Test 2 32Bits Sliding Ones verification operations - Passed
            Test 3 32Bits Sliding Zero write operations - Passed
            Test 3 32Bits Sliding Zero verification operations - Passed
            Memory Deallocated.
            --- Subtest - Memory Stress Test Passed!!!  ---
            Integrated Memory Controller Stress Test Passed!!!
            End Time: Wed Oct 26 21:31:58 2016
            Total Time:  seconds: 1
            --------------------------------------------------------------------
            PCH Test
            Module Version: 1.0.9.64b.W
            Start Time: Wed Oct 26 21:31:58 2016
            Test Result - PASS

            Chipset          : Skylake Platform Controller Hub

            1 device connected to PCI Express Port 1
               1 : Standard NVM Express Controller

            1 device connected to PCI Express Port 9
               1 : ASMedia USB3.1 eXtensible Host Controller

            1 device connected to PCI Express Port 11
               1 : PCI-to-PCI Bridge

            1 device connected to PCI Express Port 13
               1 : ASMedia USB3.1 eXtensible Host Controller

            1 device connected to PCI Express Port 15
               1 : ASMedia USB3.1 eXtensible Host Controller

            No device connected to PCI Express Port 17

            3 device connected to SATA Controller 1
               1 : MKNSSDRE1TB
               2 : HL-DT-ST BD-RE  WH16NS40
               3 : TOSHIBA MD04ACA400

            3USB devices detected
               1 : Bluetooth USB module
               2 : USB Composite Device
               3 : USB Input Device

            2 device connected to Intel High Definition Audio Controller
               1 : Intel(R) Display Audio
               2 : Realtek High Definition Audio

            PCH LAN Device 'Intel(R) Ethernet Connection (2) I219-V' detected

            Platform Controller Hub Test Completed!!!
            End Time: Wed Oct 26 21:31:58 2016
            Total Time:  seconds: 0
            --------------------------------------------------------------------
            IGD Module Test
            Module Version: 1.0.12.64b.W
            Start Time: Wed Oct 26 21:31:58 2016
            Test Result: PASS
            Expected: As defined in IGD_LocalConfig.xml file
            Received: 0x5E
            End Time: Wed Oct 26 21:31:58 2016
            Total Time:  seconds: 0
            --------------------------------------------------------------------
            GFX Module Test
            Module Version: 1.0.12.64b.W
            Start Time: Wed Oct 26 21:31:58 2016
            GFX Module Test: PASS
            End Time: Wed Oct 26 21:32:25 2016
            Total Time:  seconds: 27
            --------------------------------------------------------------------
            CPU Load
            Module Version: 1.0.10.64b.W
            Start Time: Wed Oct 26 21:32:25 2016
            CPU Load: PASS
            End Time: Wed Oct 26 21:36:25 2016
            Total Time:  seconds: 240
            --------------------------------------------------------------------
            --- IPDT64 - Temperature Monitor Results

            --- Temperature Test ---
            ...
            Version 1.0.12.64b.W
            ...

            74 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 74 degrees below max

            --- Temperature Test ---
            ...
            Version 1.0.12.64b.W
            ...


            Entering run forever
            64 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 64 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            56 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 56 degrees below max
            Test PASSED
            52 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 52 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            56 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 56 degrees below max
            Test PASSED
            52 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 52 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            56 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 56 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            50 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 50 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            53 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 53 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            52 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 52 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            50 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 50 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            53 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 53 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            50 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 50 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            52 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 52 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            51 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 51 degrees below max
            Test PASSED
            54 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 54 degrees below max
            Test PASSED
            52 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 52 degrees below max
            Test PASSED
            56 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 56 degrees below max
            Test PASSED
            52 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 52 degrees below max
            Test PASSED
            55 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 55 degrees below max
            Test PASSED
            56 degrees C below maximum
            Test Result - PASS
            Expected Greater than 1 degrees below max
            Received 56 degrees below max
            Test PASSED

             

            Temperature Monitor Stopped

            --------------------------------------------------------------------

            System Information
            ------------------
            Processor Name: Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
            Processor Information: Intel64 Family 6 Model 94 Stepping 3
            Number of Physical Cores: 4
            Number of Logical Cores: 8
            Installed System Memory: 32 GB
            Operating System: Microsoft Windows 10 Pro 64-bit
            Graphics Information: Intel(R) HD Graphics 530
            System Product: Z170-DELUXE
            System BIOS: 1902
            System Serial Number: System Serial Number
            --------------------------------------------------------------------

            --- IPDT64 - End Time: 10/26/2016 9:36:25 PM
            --- IPDT64 - Result: Pass
            --------------------------------------------------------------------

            • 3. Re: i7 6700K temperature too high under load
              Intel Corporation
              This message was posted on behalf of Intel Corporation

              Hello damian21:
               
              Thank you very much for taking the time to provide that information.
               
              In regard to your question, when running the IPDT the processor should go up to 4.20 GHz, this could be a misreading.
               
              Did you restore the BIOS to defaults and then run the tool?
               
              Which Windows version are you using?
               
              In regard to temperature, everything seems to be just fine, and so are the rest of the features that were tested, and if none of the symptoms above is happening then the processor seems to be working fine.
               
              Try to reset the BIOS to defaults, and run the tool again, just to check if the clock speed now shows 4.2 GHz.
               
              Any questions, please let me know.
               
              Alberto
               

              • 4. Re: i7 6700K temperature too high under load
                damian21

                Thank you for your continued help Alberto.

                 

                 

                I am using Microsoft Windows 10 Pro 64-bit Version 1511.

                 

                 

                My BIOS settings were already default, but I reset them again and re-ran the tool.  After doing that I still see the same behavior I described before.  If I run Prime95 I see that all 4 cores are at 4.2 GHz.  Then when I run IPDT I see that all 4 cores are at 4.0 GHz.  If I run Prime95 again after IPDT, then Prime95 also only runs at 4.0 GHz until I reboot the computer.

                 

                 

                In my BIOS I noticed a setting called "ASUS Multicore Enhancement" that is enabled by default.  The description of enabled is: ASUS optimized core ratio Turbo settings.  The description of disabled is: Intel default Turbo core ratio settings.  I then tried disabling this setting in order to use the Intel default Turbo core ratio settings. When I did this, the BIOS also changed another setting "CPU core ratio" from "Sync all cores" to "1 core ratio: 42 and 2-4 core ratio: 40".  With this configuration both IPDT and Prime95 run at 4.0 GHz.  I think that makes sense since both programs are loading all 4 cores, and the setting seems to imply that it will only run at 4.2 GHz when only 1 core is active.

                 

                 

                Next I tried turning "Sync all cores" back on.  That set "1-4 core ratio to 42".  In that configuration it behaves like my original description with Prime95 at 4.2 GHz and IPDT at 4.0 GHz.

                 

                 

                I looked up the description of Turbo on the processor spec sheet which says "Max turbo frequency is the maximum single core frequency at which the processor is capable of operating using Intel® Turbo Boost Technology." If IPDT enforces that definition of Turbo, maybe it makes sense that it is only running at 4.0 GHz since it loads all cores. However that doesn’t agree with your previous statement that IPDT should be running at 4.2 GHz.  

                 

                 

                What do you think?

                 

                 

                Damian

                • 5. Re: i7 6700K temperature too high under load
                  Intel Corporation
                  This message was posted on behalf of Intel Corporation

                  Hello damian21:

                  Thank you very much for letting us know that information, it is very useful for us and for all the peers viewing this thread.

                  Actually, according to our information, the IPDT should show 4.2GHz of processor frequency regardless if just one core is enable or if the four cores are enable, so, we will do a research on this situation in order to find out if that is expected on the 6th generation processors or not.

                  I just wanted to let you know also that the processor does not seemed to be defective, this problem seems to be related with the tool itself, but we will verify that to make sure if that is the way it works with some processors or if it has some misreadings on the report.

                  As soon as I get any details on the investigation, I will post the results on this thread.


                  Any questions, please let me know.

                  Alberto

                  • 6. Re: i7 6700K temperature too high under load
                    damian21

                    Alberto,

                     

                    Since you mentioned possible misreadings in the report, I just want to clarify that the processor speeds I have been describing are those measured by my motherboard software, not the IPDT processing frequency test.  My motherboard software displays core voltage, base clock, core ratio multiplier, and processor frequency measured in real time.  When the processor is idle I can see it drop down to under 1.0 GHz, with a corresponding core voltage drop. When the processor is under load I can see the processor frequency increase  in steps (normally up to 4.2 GHz) along with the core voltage. All of this I believe is the expected behavior.  When I first run Prime95 my motherboard shows the processor ramps up to 4.2 GHz and the temps go up to 75-80 C.  When I run IPDT, during the temperature test, my motherboard shows that the processor is only at 4.0 GHz and the temperatures look good. Interestingly if I run Prime95 again after IPDT, my motherboard shows that the processor speed now only ramps up to 4.0 GHz. Also I see that the processor is now running 10 degrees Celsius cooler (65 C), and at a lower core voltage, than the first time I ran Prime95.  It stays like this until I reboot the computer. It sure looks to me like running IPDT changes some setting, that at least on my system, subsequently prevents my processor from hitting the expected 4.2 GHz turbo frequency. My concern would be if IPDT is enabling a voltage, temperature, or other criteria for turbo mode that isn't being met by my processor but should be, thereby preventing it from using turbo.

                     

                    All that aside for a moment, I am still not feeling completely resolved about the original high temperature question. I now understand from your previous response, and several other posts in this forum, that temps as high as mine (80 C) are safe.   However I have also seen some posts that have reinforced my notion that temps much above 64 C are unusual for stock settings. For example:  

                    Are these temps allright?

                    Intel i7-6700k temperature

                    i7 6700k temperature too high

                     

                    In the end, what I would really like to understand is which of the following categories I fall in:

                    1. My processor is completely typical. If I were to buy a second one I would likely see the same temps within several degrees.
                    2. My processor is totally within spec but happens to be on the hot side. It might be a poor overclocker, but that is just the luck of the draw.
                    3. My processor is borderline. The temps are technically safe, but they really aren't what they are supposed to be. At stock settings my cooling systems fans will have to run faster and louder than they should.

                     

                    If you could answer that as honestly as possible, that would really help me to feel resolved.

                     

                    Thanks again for all your help.

                    Damian

                    • 7. Re: i7 6700K temperature too high under load
                      Intel Corporation
                      This message was posted on behalf of Intel Corporation

                      Hello damian21:
                       
                      In regard to your question, the answer is actually the number two, normally what it is expected is for the processor to reach around 30C at idle, and then depending on what the PC is doing, what kind of applications are running or if you do a stress test it is expected for it to reach 60C or 70C, but those are not specific values, they can be a little bit higher or lower, depending also on room temperature, in this case the fact that according to those tools is reaching 80C is a little bit higher than it should but still expected, as long as it does not reach 90 or higher should be fine.
                       
                      Now, we rely in our tool, and based on it the temperature is just fine, according to the report the processor shows a temperature of 67 degrees below max, which is perfect, that means it is running approximately at 33C and that is pretty good.
                       
                      When you use third party tools, they might have misreadings and some values might be different, that is why we rely in the information our tool reports.
                       
                      So, to answer the original question, in regard to the temperature the processor is fine and working as it is expected, within the specs, specially if the PC is not throttling or getting freeze.
                       
                      I sent you a private message, with the results of our research.
                       
                      Any questions, please let me know.
                       
                      Alberto  
                       

                      • 8. Re: i7 6700K temperature too high under load
                        wingman99

                        damian21 wrote:

                         

                        Alberto,

                         

                        Since you mentioned possible misreadings in the report, I just want to clarify that the processor speeds I have been describing are those measured by my motherboard software, not the IPDT processing frequency test. My motherboard software displays core voltage, base clock, core ratio multiplier, and processor frequency measured in real time. When the processor is idle I can see it drop down to under 1.0 GHz, with a corresponding core voltage drop. When the processor is under load I can see the processor frequency increase in steps (normally up to 4.2 GHz) along with the core voltage. All of this I believe is the expected behavior. When I first run Prime95 my motherboard shows the processor ramps up to 4.2 GHz and the temps go up to 75-80 C. When I run IPDT, during the temperature test, my motherboard shows that the processor is only at 4.0 GHz and the temperatures look good. Interestingly if I run Prime95 again after IPDT, my motherboard shows that the processor speed now only ramps up to 4.0 GHz. Also I see that the processor is now running 10 degrees Celsius cooler (65 C), and at a lower core voltage, than the first time I ran Prime95. It stays like this until I reboot the computer. It sure looks to me like running IPDT changes some setting, that at least on my system, subsequently prevents my processor from hitting the expected 4.2 GHz turbo frequency. My concern would be if IPDT is enabling a voltage, temperature, or other criteria for turbo mode that isn't being met by my processor but should be, thereby preventing it from using turbo.

                         

                        All that aside for a moment, I am still not feeling completely resolved about the original high temperature question. I now understand from your previous response, and several other posts in this forum, that temps as high as mine (80 C) are safe. However I have also seen some posts that have reinforced my notion that temps much above 64 C are unusual for stock settings. For example:

                        Are these temps allright?

                        Intel i7-6700k temperature

                        i7 6700k temperature too high

                         

                        In the end, what I would really like to understand is which of the following categories I fall in:

                        1. My processor is completely typical. If I were to buy a second one I would likely see the same temps within several degrees.
                        2. My processor is totally within spec but happens to be on the hot side. It might be a poor overclocker, but that is just the luck of the draw.
                        3. My processor is borderline. The temps are technically safe, but they really aren't what they are supposed to be. At stock settings my cooling systems fans will have to run faster and louder than they should.

                         

                        If you could answer that as honestly as possible, that would really help me to feel resolved.

                         

                        Thanks again for all your help.

                        Damian

                        With four cores active on the i7 6700k the cpu will not turbo up to 4.2GHz. Frequently Asked Questions about Intel® Turbo Boost Technology

                        The CPU will throttle if temperature reaches TJ is 100c page 95 intel PDF http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/desktop-6th-gen-core-family-datasheet-vol-1.pdf  . so 65c in HWmonitor is just fine.

                        • 9. Re: i7 6700K temperature too high under load
                          Intel Corporation
                          This message was posted on behalf of Intel Corporation

                          Hello wingman99:
                           
                          Thank you very much for providing that information, it will be very useful for all the peers viewing this thread.
                           
                          Is just that based on the testings we have done, for the i7-6700K processor the IPDT should show 4.2GHz as expected CPU frequency regardless of the quantity of cores that are enable.
                           
                          Regards
                           
                          Alberto
                           

                          • 10. Re: i7 6700K temperature too high under load
                            damian21

                            Alberto,

                             

                            Thank you for your strait forward answer and explanation. That makes a lot of sense. At this point I feel resolved, and believe I finally have a good understanding of the subject.

                             

                            I appreciate all the time you have taken to  help me.

                             

                            Damian

                            • 11. Re: i7 6700K temperature too high under load
                              Intel Corporation
                              This message was posted on behalf of Intel Corporation

                              Hello damian21:
                               
                              You are welcome, perfect, we are glad to hear that you received all the information you were looking for and now you have a better understanding about this matter.
                               
                              Any other inquiry, do not hesitate in contact us again.
                               
                              Alberto
                               

                              • 12. Re: i7 6700K temperature too high under load
                                wingman99

                                Intel Corporation wrote:

                                 

                                Hello wingman99:

                                Thank you very much for providing that information, it will be very useful for all the peers viewing this thread.

                                Is just that based on the testings we have done, for the i7-6700K processor the IPDT should show 4.2GHz as expected CPU frequency regardless of the quantity of cores that are enable.

                                Regards

                                Alberto

                                Processori7-6785R – 3.30 GHzi7-6700K - 4.00 GHz1 Bin = 100 MHz
                                Processor CoresQuad-coreQuad-core
                                Active Cores4C3C2C1C4C3C2C1C
                                Max Intel® Turbo Boost Bin Upside24560002
                                Max Intel® Turbo Boost Frequency3.53.73.83.94444.2

                                Intel® Core™ i7 Desktop Processor Turbo Boost Technology Frequency...

                                 

                                With testing windows threads all cores in a rotating manner with a single threaded application.

                                • 13. Re: i7 6700K temperature too high under load
                                  Intel Corporation
                                  This message was posted on behalf of Intel Corporation

                                  Hello wingman99:
                                   
                                  Thank you very much once again for providing the information posted above.
                                   
                                  As you can see it works different depending on the model of the processor, for this processor specifically as you mentioned before, there is only one core that needs to be enable for the processor to reach 4.2 GHz using the IPDT, let me apologize for any misinformation.
                                   
                                  Regards
                                   
                                  Alberto