Question CPU Throttles after a couple minutes of uptime with normal temps

[AquaPCs]

CPU throttles after a few minutes of game launch. Before the throttling, CPU performs phenomenal on both benches and in games. This happens after launching every game however seems to go away after many hours of uptime and also randomly for a couple minutes. (could be a red herring). Temps spike from 50-70C (Not sure what it was before the stuttering started happening) and I have the latest bios. My ram passed memtest86 as well. Had my system without change for a while before this started happening.

Specs:
I9 9900KF
32G DDR4
3070 Ti
B365M Pro4

https://imgur.com/a/fWRP7C2

Valorant Example can get much more extreme than this, fluctuating between 100 and 20 fps roughly
(Sorry for Echo)

 

[uWebb429]

@AquaPCs

Run ThrottleStop 9.6

https://www.techpowerup.com/download/techpowerup-throttlestop/

Open the Limit Reasons window. When your CPU is stuck at 800 MHz, does Limit Reasons show BD PROCHOT glowing red? If it does, try clearing the BD PROCHOT check box on the main screen of ThrottleStop.

Post screenshots of the FIVR and TPL windows if you need help. Use www.imgur.com to host screenshots.

Most B365 boards are not adequate for 9900KF processors. You might also see VR CURRENT or VR THERMAL throttling in Limit Reasons.

 

[AquaPCs]

Thank you for the reply!

After downloading ThrottleStop, the BD PROCHOT was blinking red when under stress. After clicking the box the throttling stopped! However PL 1 and EDP other are red still. It's probably also important to note I have a 600w power supply but correct me if I'm wrong that it's enough for my setup.

I'm by no means super knowledgeable when it comes to cpu's or cooling but doesn't this let this let the cpu heat up more than normal? Obviously it's not gonna fry my cpu but how much more am I stressing the cpu? Also do you recommend undervolting if I hover around 70C at stress? What do you mean by adequate for 9900KF processors? The manual says it supports it or do you mean I need to upgrade my motherboard to get the most out of my cpu?

https://imgur.com/a/EVakdGp

What settings if any should I change?

Thanks again for the response!

@AquaPCs

Run ThrottleStop 9.6

https://www.techpowerup.com/download/techpowerup-throttlestop/

Open the Limit Reasons window. When your CPU is stuck at 800 MHz, does Limit Reasons show BD PROCHOT glowing red? If it does, try clearing the BD PROCHOT check box on the main screen of ThrottleStop.

Post screenshots of the FIVR and TPL windows if you need help. Use www.imgur.com to host screenshots.

Most B365 boards are not adequate for 9900KF processors. You might also see VR CURRENT or VR THERMAL throttling in Limit Reasons.

 

[uWebb429]

I have a 600w power supply

Power limit throttling and the power rating of your power supply are two different things.

The PL1 and PL2 turbo power limits combined with the turbo time limit controls how an Intel CPU runs. The CPU can run up to the PL2 power limit for a short period of time. During a long term test, the CPU will be forced to reduce power consumption so it does not exceed the PL1 power limit. The turbo time limit controls how long a CPU can run at PL2 before switching to the PL1 power limit.

The Intel Hardware Default values for a 9900KF are,

PL1 = 95
PL2 = 95 * 1.25 = 118.75
Turbo Time = 1 second

Motherboard manufacturers can adjust these limits however they like. I used to always call these values the Intel recommended values but the Intel datasheet refers to these limits as the Hardware Default values. That means the CPU would default to these values if a motherboard did not set any of these values itself. The Intel recommended turbo time limit is 28 seconds instead of 1 second. The K series processors are unlocked so no Intel recommended power limit values are listed. This recommendation allows users to decide how they want to run their unlocked CPU.

Most high end Z series motherboards will have an unlimited power setting. That will typically set the turbo power limits sky high. That prevents these limits from ever interfering with the CPU using maximum turbo boost all of the time.

PL1 = 4095
PL2 = 4095
Turbo Time = 28 seconds

If you try to run a 9900KF at full power on a low end motherboard like you have, it is possible that you could damage the motherboard. That is what I mean when I said your B365 motherboard is not adequate. A 9900KF will work in your motherboard but you will likely not be able to run it at full speed and at full power indefinitely. Lower end motherboards tend to use barely adequate voltage regulators as well as other components on the motherboard. The voltage regulators can overheat due to lack of heatsinks or poor airflow on the board.

If you run a 9900KF at the Intel default values, it will be forced to power limit throttle during any sort of stress test like Cinebench. Within 1 second of starting a stress test, the CPU will slow down as much as necessary so long term power consumption does not exceed 95 Watts. You can try and use ThrottleStop to go beyond this limit but that could damage your motherboard. You might be fine at 150W or 200W or this extra power and stress might cause your motherboard to burn out next week or next month. The CPU could also be damaged if you try to run it at full power on a motherboard that was not designed for that purpose.