ThrottleStop settings for P53 i7 9850H, RTX 3000

[KubanskY]

Hi all,
I recently bought a post-lease Lenovo Thinkpad P53 laptop with an i7 9850H processor and an Nvidia Quadro RTX 3000 graphics card. I've looked through a few threads on program settings, and adjusted them as much as I can for my laptop. However, I've noticed that I can't get the CPU temperature below 98 degrees, while others reach temperatures below 90 in heavy-duty mode. I'll add that I haven't changed the thermal paste yet, but I will. I would also like to configure a second profile to work only for the Internet, cutting power. Please help.
Sorry for my English.

http://imgur.com/a/OeJ4DJd

 

[unclewebb]

I haven't changed the thermal paste yet

When fully loaded and running at max speed, the 9850H is a hot running CPU. Try replacing the thermal paste with Honeywell PTM 7950. I do not know what else you can do if cleaning out your laptop and replacing the thermal paste does not solve your problem.

Your ThrottleStop settings look OK. You are already undervolting about as much as you reliably can undervolt. You are likely already on the edge of stability.

 

[KubanskY]

When fully loaded and running at max speed, the 9850H is a hot running CPU. Try replacing the thermal paste with Honeywell PTM 7950. I do not know what else you can do if cleaning out your laptop and replacing the thermal paste does not solve your problem.

Your ThrottleStop settings look OK. You are already undervolting about as much as you reliably can undervolt. You are likely already on the edge of stability.

Reducing processor performance will help? Attached is a screen shot of TPL.

 

[unclewebb]

The 9850H has a 45W TDP power rating. Setting the turbo power limits to 60W and 70W increases full load performance but it also increases temperatures. Decrease both limits by 10W or 15W to get a better performance heat balance.

 

[KubanskY]

Thank you for your help, yes I will. After replacing the paste, do I try to increase these limits again?
Can you still tell me how to adjust the power profile for longer battery life? Changing the EPP? Lower PL1 and PL2 values?

I reduced PL1 and PL2 by 10 as you wrote and performance definitely improved. TSBench test got a better result. The maximum temperature is 92 degrees. I think that if I replace the paste it will be even better and maybe I will go back to the previous PL1 and PL2 values.

I add the logs after the changes.

 

[unclewebb]

I recommend using a consistent benchmark like Cinebench when testing. I like the older R23 version but the latest version is OK too.

Cinebench R23

Cinebench is the perfect tool to compare CPU and graphics performance across various systems and platforms

www.techspot.com

It will provide you with a score so you can compare how your laptop is running with other users. The TS Bench is just a quick and convenient tool to create some heat in your CPU. It is useful at detecting errors if you undervolt too much. Next to no one uses the TS Bench for testing or comparison purposes.

If you find a way to improve cooling, you can increase the turbo power limits and you can set the turbo ratios back to their default values. You do not need to check the Overclock box in ThrottleStop if you are running your CPU at its default speed or less. The ThinkPad P53 is not a thin or light laptop so it should have better than average cooling. Hopefully after doing some cooling system maintenance, you will be able to run the CPU at 70W or 80W without it overheating. If you run a log file and the far right column shows TEMP, TEMP, TEMP; that means the CPU is overheating and thermal throttling. It is best to avoid that.

 

[PHVM_BR]

i7-9850H is a 9750H with +100MHz and with the possibility of overclocking (up to +400MHz).

Generally the i7-9750H can go up to -125mV in cache and lowering the core voltage even further brings benefits in some workloads.

In my tests with i7-9750H the ideal point with Speedshift at 84 (Windows balanced plan) is -125mV in the cache and -210mV in the core.

With Speedshift at 0 (Windows high performance plan) the undervolt is stable with -135mV in the cache and -225mV in the core.

Originally my i7 consumed ~100W on Cinebench R23 to maintain its maximum multicore clock (4.0GHz).

With the undervolt its consumption dropped to ~60W under the same conditions.

Check if these values are stable with TS Bench and if everything is ok compare with the current values in Cinebench R23.

 

[KubanskY]

I recommend using a consistent benchmark like Cinebench when testing. I like the older R23 version but the latest version is OK too.

Cinebench R23

Cinebench is the perfect tool to compare CPU and graphics performance across various systems and platforms

www.techspot.com

It will provide you with a score so you can compare how your laptop is running with other users. The TS Bench is just a quick and convenient tool to create some heat in your CPU. It is useful at detecting errors if you undervolt too much. Next to no one uses the TS Bench for testing or comparison purposes.

If you find a way to improve cooling, you can increase the turbo power limits and you can set the turbo ratios back to their default values. You do not need to check the Overclock box in ThrottleStop if you are running your CPU at its default speed or less. The ThinkPad P53 is not a thin or light laptop so it should have better than average cooling. Hopefully after doing some cooling system maintenance, you will be able to run the CPU at 70W or 80W without it overheating. If you run a log file and the far right column shows TEMP, TEMP, TEMP; that means the CPU is overheating and thermal throttling. It is best to avoid that.

Thank you for your proposal. I used Cinebench R23 and unfortunately with the previous settings the CPU temperature was a maximum of 97 degrees. I decided to reduce the PL1 and PL2 values further to 45. During the TSBench test I have the highest value so far at 15,561 and the maximum temperature is 82 degrees. This result satisfies me for now, after replacing the pastes I will further correct the values.

 

[KubanskY]

i7-9850H is a 9750H with +100MHz and with the possibility of overclocking (up to +400MHz).

Generally the i7-9750H can go up to -125mV in cache and lowering the core voltage even further brings benefits in some workloads.

In my tests with i7-9750H the ideal point with Speedshift at 84 (Windows balanced plan) is -125mV in the cache and -210mV in the core.

With Speedshift at 0 (Windows high performance plan) the undervolt is stable with -135mV in the cache and -225mV in the core.

Originally my i7 consumed ~100W on Cinebench R23 to maintain its maximum multicore clock (4.0GHz).

With the undervolt its consumption dropped to ~60W under the same conditions.

Check if these values are stable with TS Bench and if everything is ok compare with the current values in Cinebench R23.

Thanks for the suggestion. What laptop is this processor in? Didn't low values affect the CPU? I will try to experiment as soon as I replace the paste.

 

[PHVM_BR]

What laptop is this processor in? Didn't low values affect the CPU? I will try to experiment as soon as I replace the paste.

Precision 7540.

This undervolt certainly affected the CPU drastically...

In Cinebench without undervolt it consumes ~100W and reaches ~95°C with the fans at maximum, with undervolt it consumes ~60W and reaches ~78°C with the fans at 75%.

i7-9750H: undervolt x power ratio

I have a Precision 7540 for more than 3 years and with undervolt it always delivered easily the maximum multicore performance of the i7. At the beginning of the year I changed its thermal paste for the Honeywell PTM 7950 phase change pad and decided to test its maximum cooling capacity and took...

www.techpowerup.com

 

[unclewebb]

During the TS Bench test I have the highest value so far at 15,561

The TS Bench reports the amount of time the benchmark took to complete. A bigger number means the benchmark took longer so the CPU must be running slower. When you lower the turbo power limits, you are throttling the CPU so it runs slower.

Less heat is good but if you can successfully undervolt further like @PHVM_BR has suggested, that will allow performance to increase or stay the same, not decrease.

 

[KubanskY]

The TS Bench reports the amount of time the benchmark took to complete. A bigger number means the benchmark took longer so the CPU must be running slower. When you lower the turbo power limits, you are throttling the CPU so it runs slower.

Less heat is good but if you can successfully undervolt further like @PHVM_BR has suggested, that will allow performance to increase or stay the same, not decrease.

I understand: Is a lower test result better?

 

[KubanskY]

Precision 7540.

This undervolt certainly affected the CPU drastically...

In Cinebench without undervolt it consumes ~100W and reaches ~95°C with the fans at maximum, with undervolt it consumes ~60W and reaches ~78°C with the fans at 75%.

i7-9750H: undervolt x power ratio

I have a Precision 7540 for more than 3 years and with undervolt it always delivered easily the maximum multicore performance of the i7. At the beginning of the year I changed its thermal paste for the Honeywell PTM 7950 phase change pad and decided to test its maximum cooling capacity and took...

www.techpowerup.com

Can I get screenshots of your settings?

 

[unclewebb]

Is a lower test result better?

The TS Bench reports the elapsed time to complete a task. Fast computers take less time to complete tasks. A slow computer will take more time to complete the same task.

When you go to the car races and it takes one car 15 seconds to complete a quarter mile run and the car beside it is a top fuel funny car that only takes 4 seconds to complete a quarter mile run, which is better? The top fuel funny car is better if winning the race is important. The slower car is better if you are the guy that has to pay for the fuel used after the race.

 

[PHVM_BR]

Can I get screenshots of your settings?

I don't have screenshots saved and I also no longer have the i7-9750H.

Each CPU is unique and just because the i7 I had could reach -125 or -135mV in the cache doesn't mean yours will be stable at that level, but a large number of 9th generation i7 H can lower the voltage at that level.

Keep in mind that the limiting factor is the cache undervolt.

To find out the stable limit of your CPU, I recommend that you lower the voltage equally on the cache and the core and test in TS Bench until an error appears.

When TS Bench points out an error, you back off with +5mV in the cache and core.

Then you test with the stable value in Cinebench R23 following the clock/power/temperature.

Then lower the tension just in the core, testing each step in Cinebench.

The sweet spot for core undervolt is between 1.6 and 1.75 of cache undervolt for these CPUs.

Below this there is no benefit and it appears that the system ignores the additional undervoltage.

 

[KubanskY]

I don't have screenshots saved and I also no longer have the i7-9750H.

Each CPU is unique and just because the i7 I had could reach -125 or -135mV in the cache doesn't mean yours will be stable at that level, but a large number of 9th generation i7 H can lower the voltage at that level.

Keep in mind that the limiting factor is the cache undervolt.

To find out the stable limit of your CPU, I recommend that you lower the voltage equally on the cache and the core and test in TS Bench until an error appears.

When TS Bench points out an error, you back off with +5mV in the cache and core.

Then you test with the stable value in Cinebench R23 following the clock/power/temperature.

Then lower the tension just in the core, testing each step in Cinebench.

The sweet spot for core undervolt is between 1.6 and 1.75 of cache undervolt for these CPUs.

Below this there is no benefit and it appears that the system ignores the additional undervoltage.

TSBench gives me PL2 and EDP OTHER errors every time, should I ignore these errors?

 

[PHVM_BR]

TSBench gives me PL2 and EDP OTHER errors every time, should I ignore these errors?

The errors I wrote above are not related to PL2 or EDP OTHER.

These are errors that are shown in the TS Bench window in case of system instability due to too much undervoltage.

The "errors" reported in the Limit Reason window merely indicate that some limitation is occurring on the CPU.

For example, if you limit PL2 to 60W and this consumption is achieved by limiting the CPU, the Limit Reasons window will indicate the limitation in PL2.

 

[KubanskY]

I checked the graphics card's performance in 3DMark and watched the CPU frequency graph. Does this mean it is still throttling?

 

[KubanskY]

I don't have screenshots saved and I also no longer have the i7-9750H.

Each CPU is unique and just because the i7 I had could reach -125 or -135mV in the cache doesn't mean yours will be stable at that level, but a large number of 9th generation i7 H can lower the voltage at that level.

Keep in mind that the limiting factor is the cache undervolt.

To find out the stable limit of your CPU, I recommend that you lower the voltage equally on the cache and the core and test in TS Bench until an error appears.

When TS Bench points out an error, you back off with +5mV in the cache and core.

Then you test with the stable value in Cinebench R23 following the clock/power/temperature.

Then lower the tension just in the core, testing each step in Cinebench.

The sweet spot for core undervolt is between 1.6 and 1.75 of cache undervolt for these CPUs.

Below this there is no benefit and it appears that the system ignores the additional undervoltage.

I tested cache and core to -125 mV and got a bluescreen error. The error was VIDEO_TDR_FAILURE (igdkmd64.sys).

 

[unclewebb]

Does this mean it is still throttling?

I am not sure what the 3D Mark CPU frequency graph means. Turn on the ThrottleStop Log File option and run a ThrottleStop log file while you are doing a 3D Mark run. That is an excellent source of information. The log file will include any reasons for throttling if there were any problems.

I tested cache and core to -125 mV and got a bluescreen error.

A blue screen when undervolting is usually a good sign that your CPU needs more voltage. Try using -100 mV cache and -125 mV for the core. If that is OK, try bumping only the core up to -150 mV and then -175 mV. Obviously stop if you get a blue screen. As @PHVM_BR mentioned, CPUs are all unique. No matter what voltage is recommended in a forum, you always need to do some testing to make sure that an undervolt is 100% stable. It can take a few days or a week of daily use before I start feeling comfortable that an undervolt is stable.

 

[KubanskY]

I am not sure what the 3D Mark CPU frequency graph means. Turn on the ThrottleStop Log File option and run a ThrottleStop log file while you are doing a 3D Mark run. That is an excellent source of information. The log file will include any reasons for throttling if there were any problems.


A blue screen when undervolting is usually a good sign that your CPU needs more voltage. Try using -100 mV cache and -125 mV for the core. If that is OK, try bumping only the core up to -150 mV and then -175 mV. Obviously stop if you get a blue screen. As @PHVM_BR mentioned, CPUs are all unique. No matter what voltage is recommended in a forum, you always need to do some testing to make sure that an undervolt is 100% stable. It can take a few days or a week of daily use before I start feeling comfortable that an undervolt is stable.

Hi unclewebb!

I think I've found the best solution for my CPU right now. The CPU Cache is above -100.6 mV and the CPU Core is at -185.5 mV, which is already unstable because TSBench shows errors and a blue screen appears. I think that when I get to my Honeywell PTM7950, I'll improve the configuration by lowering the voltage.