My I7 14700K instant thermal throtteling when ever is start a benchmark or stresstest

[StanZ]

Hello all,

I was recently testing my CPU to see what it can handle in Intel Extreme Tuning Utility. While I was testing, I saw something strange: my CPU temps instantly shoot up from 47°C to 100°C when I start the test and instantly drop from 100°C to 47°C-50°C when I stop the test.

I tried all the basics like tightening the CPU cooler screws, etc.

I also ran the Intel Processor Diagnostic Tool, and it passed all the tests. When I was doing this test, my CPU did not thermal throttle. It stayed at 95C.

The strange thing is, I have the same problem at work on a completely different PC with different specs.

Is it normal for a CPU to shoot up to 100°C during a benchmark or stress test and cool down immediately after? Or is it Intel's SVID behavior, 'Intel's fail-safe,' because of the instability issues that the 14th gen has? Or Could it be that there is a bottleneck issue between CPU and GPU

I came across a similar problem on Reddit, but I have yet to find the solution.

https://www.reddit.com/r/buildapc/comments/17mxsj2/i914900k_reaching_100%C2%BAc_and_thermal_throttling_12/ 

My specs

Asus Prime Z790-A Wifi

I7 14700KF

Artic cooler Liquid Freezer III 360

RTX 2060 Super

32 GB 6000MT/s 

750W PSU

PC at work Specs

Aorus Master Z590

I9 11900KF

Be quiet Dark Rock 2 Cooler

RTX 3060

64 GB 3600MT/s

850W PSU

[JainilJain]

Hello,

it is completely normal for the CPU to shoot to 100°C right at the beginning of a stress test because it takes a little time for your cooler to know that CPU is under load and it needs to ramp up the fans to cool it down. The thing to look for is if your CPU is stuck at 100°C for a while and you observe clocks dropping or are not stable. If any of those two happen then there might be some issue and you would need to troubleshoot. Otherwise its completely safe for the CPU to shoot straight to 100°C and after taking the load off the core temperatures to  plummet instantly to normal idle temperatures. Hope this helps you.

Thanks

[RobbieR_Intel]

Hello StanZ

Thank you for reaching out and providing detailed information about the issue you're experiencing with your CPU temperatures. We appreciate your diligence in troubleshooting and sharing your observations.

Please answer the following questions:

• When was the last time you changed your Thermal Paste?
• Is there adequate airflow in your case? Are all fans operational and correctly oriented?
• Is your BIOS up to date?
• Did you overclock your Processor?
• When did the issue start to persist?

We look forward for your response.

Best Regards,

Robbie R.

Intel Customer Support Technician

[StanZ]

Thank you for your response and your time to help me.

• When was the last time you changed your Thermal Paste?
  When I installed the news AIO cooler, that was around the time I made this post. Before this AIO cooler I had the Coolermaster hyper 212. 
• Is there adequate airflow in your case? Are all fans operational and correctly oriented?
  All Fans are working and the air flow goes from bottom to the top the case I have is the coolermaster sl600m 
  
  
• Is your BIOS up to date?
  When making this post the bios I was running was PRIME Z790-A WIFI BIOS 1661 And now I am running 1663 this should have the micro code 0x129 fix
• Did you overclock your Processor?
  I did not overclock my CPU and  the bios is on enforce all limits setting and the SVID behaviour is on intels fail safe 
• When did the issue start to persist?
  I do not know when it started but when I installed my new cooler to test the temps that is when i noticed it. But I think it started when I upgraded 14th gen because on my i5 9600K I never had this issue

On the image you can see that the temps rise and drops in no time

[RobbieR_Intel]

Hello StanZ,

Thank you for your detailed response and providing additional insights regarding the high CPU temperatures you observed during your testing with the XTU.

Please answer the additional following questions:

• Is your BIOS Configuration set to Intel Default? If not, please see June 2024 Guidance regarding Intel Core 13th and 14th Gen K/KF/KS instability reports - Intel Community
• What is your PSU?
• Apart from Intel XTU, have you tried other stress testing software to see if the temperature behavior is consistent across different tools?

We look forward to your response!

Best Regards,

Robbie R.

Intel Customer Support Technician

[StanZ]

Hello Robbie R

My bios is on Intels Default see attachements mabye there is a setting incorrect.

My PSU is a Coolermaster 750W MWE Gold

For the measuring software I used XTU and GPU Z to see the temps and for stress testing I used Cinebench multi core and single core and this website https://mprep.info/gpu/  

The IMG is the bios settings

The Schermafbeelding is a screenshot of the temprature rising. Where the first part of this is 1 minute single core cinebench test and the temps go around between 60- 70c. When the temps rise to 100c it is a minute multicore test from cinebench.

Kind regards

Stan Z

[CoolBook]

Hello @StanZ 

Here is a quick test to determine if your cooler is working as expected.

I have used plenty of LFII 360, but not the new version 3.

Let's assume that it will dissipate at least 200W easily when functioning properly.

1. Limit your CPU power consumption to 200W in BIOS.

2. Run the fans/pump at max.

3. Start a CB multithread test.

4. Monitor temperatures and max power consumption using HWInfo or ThrottleStop.

Something is wrong if your CPU is reporting 200W consumption, and the temperatures reach above 80°C.

If not, then continue to 250W limit and check the temps.

This is the process to determine if your cooler is working according to specifications.

If it's not, then remove it check for gaps and poor paste application etc.

If you find out that for example 250W is the maximum power your system can handle, then you can adjust the CPU settings to get as much performance as possible from that hard limit.

Undervolting, disabling HT and similar methods are common.

This is not necessary but could be the reason a benchmark is not high as what other people report for the same CPU and cooler.

[NormanS_Intel]

Hello StanZ,

Thank you for your response and I'd like to inform you that It is normal for the processor to throttle during a stress test because processors have two modes of thermal protection: throttling and automatic shutdown. When a core exceeds the set throttle temperature, it will begin to reduce power to lower the temperature. The throttle temperature can vary depending on the processor and BIOS settings. If throttling cannot keep the temperature down, such as in cases of thermal solution failure or incorrect assembly, the processor will automatically shut down to prevent permanent damage.

However, it is not normal for the system to throttle if there are no heavy applications running.

For additional information, you can check the following articles:

• Overheating Symptoms and Troubleshooting for Intel® Boxed Processors
• What Is Throttling and How Can It Be Resolved?
• Information about Temperature for Intel® Processors

Best regards,

Norman S.

Intel Customer Support Engineer

[RobbieR_Intel]

Hello StanZ,

I wanted to check if you had the chance to review the questions posted. Please let us know at your earliest convenience so that we can determine the best course of action to resolve this matter. 

Best regards,

Robbie R.

Intel Customer Support Technician

[StanZ]

Hello all, 

I have tried to limit the CPU Usage to 200W and then do a stress test, see image for the results. but in shot the CPU temps do again shoot up to 100c for some reason. I did not check at 250W yet but I think it will give the same results.

Are there any other bios setting i should look at.

Could it also be that the CPU goes in to safe mode (bug or feature) because the e-cores and the p-cores will have the same clock speeds so it does not crash it self or something in that guideline?

Kind regards,

Stan Z

[StanZ]

So I changed something else in the bios not only the first I had the long package duration power set to 200W but now i changed it so that the short package duration power is also set to 200W, the temps do rise slower and do not go all the way to 100c but still go to 90c - 95c so still pretty high

[RobbieR_Intel]

Hello StanZ,

I have sent you an Email, kindly check your inbox.

Best Regards,

Robbie R.

Intel Customer Support Technician