NUC i7-9750 throttle stop help

[Yoshinoa]

I have an i7-9750 NUC compute element in a CM NC100 case with a supplied CM 650W SFX PSU. Paired with MSI RTX 4070 SUPER GAMING X SLIM MLG


Hopefully its not because of my GPU but I need help with my CPU settings, it always hits 100c temps during turbo boost while gaming.

after ts bench

TS bench

 

[unclewebb]

When you see a bunch of numbers in the FIVR monitoring table under the Voltage column that do not quite look right (0.3799), that is a good sign that Windows core isolation memory integrity is enabled.

This prevents ThrottleStop from reading and writing information to the voltage control register. Many ThrottleStop features will not work correctly when VBS is enabled. Follow the link in my signature to learn how to disable this. After this is disabled, reboot, delete the ThrottleStop.INI configuration file and post an updated FIVR screenshot.

When VBS is disabled, you should be able to reduce the voltage to help control the heat. The 9750H has a 45W TDP power rating. It can run at 65W and beyond but you need good cooling to prevent it from reaching 100°C and thermal throttling. Typical voltage settings for a 9750H are a negative offset of between -100 mV and -125 mV for the cache and between -125 mV and -200 mV for the core. Undervolting can help reduce your peak temperatures by 10°C.

I am not sure how good the cooler is in the NUC. What type of thermal paste did you use and how did you apply it? Honeywell PTM 7950 is popular lately and works well long term. Many pastes can start to fail in the first couple of weeks after being applied.

 

[Yoshinoa]

When you see a bunch of numbers in the FIVR monitoring table under the Voltage column that do not quite look right (0.3799), that is a good sign that Windows core isolation memory integrity is enabled.

View attachment 353770

This prevents ThrottleStop from reading and writing information to the voltage control register. Many ThrottleStop features will not work correctly when VBS is enabled. Follow the link in my signature to learn how to disable this. After this is disabled, reboot, delete the ThrottleStop.INI configuration file and post an updated FIVR screenshot.

When VBS is disabled, you should be able to reduce the voltage to help control the heat. The 9750H has a 45W TDP power rating. It can run at 65W and beyond but you need good cooling to prevent it from reaching 100°C and thermal throttling. Typical voltage settings for a 9750H are a negative offset of between -100 mV and -125 mV for the cache and between -125 mV and -200 mV for the core. Undervolting can help reduce your peak temperatures by 10°C.

I am not sure how good the cooler is in the NUC. What type of thermal paste did you use and how did you apply it? Honeywell PTM 7950 is popular lately and works well long term. Many pastes can start to fail in the first couple of weeks after being applied.

i have some thermal grizzly Kryonaut that i can apply. the CM NC100 case has 2 92mm PWM top fans

Specs are on both links

NUC 9 Extreme Compute Element - NUC9i7QNB, Intel® Core™ i7-9750H, 2x DDR4 SO-DIMM, 2x M.2, Intel® UHD Graphics 630, NUC Board​

Intel NUC 9 Extreme Compute Element - NUC9i7QNB | AVADirect

Intel NUC 9 Extreme Compute Element - NUC9i7QNB, Intel® Core™ i7-9750H, 2x DDR4 SO-DIMM, 2x M.2, Intel® UHD Graphics 630, NUC Board

www.avadirect.com

Cooler Master MasterCase NC100 Computer Case - White

The Cooler Master NC100 is a brand new small-form-factor enclosure specifically designed to bring out the best of the Intel NUC 9 Extreme Compute Element.

www.performance-pcs.com

 

[unclewebb]

The FIVR window looks OK. Now you can try undervolting to reduce your temperatures.

 

[Yoshinoa]

The FIVR window looks OK. Now you can try undervolting to reduce your temperatures.

temps are still rising even when after I undervolted

I'm getting errors when i test bench at the first offsets, those are shown on the first 3 pictures

which temps should i be looking at?

I stopped getting errors on the test bench at these other 2 offsets, theyre shown on the last 3 pictures i shared

i see that the FID temps have lowered about 10 degrees, is that what im suppose to be looking for?

which boxes do i leave unchecked?

 

[unclewebb]

If the TS Bench reports any errors, the CPU needs more voltage. For some 9750H, -125 mV for the cache is too much. You can also change the core to -175 mV. The cache setting is the important one.

have lowered about 10 degrees

That is typical. Undervolting can only do so much. You need better cooling if you want better temps.

 

[Yoshinoa]

Do I leave all of the boxes unchecked, like the BD prochot, C1E and speed step?

 

[unclewebb]

Do I leave all of the boxes unchecked

I would leave those boxes unchecked. Speed Shift (SST) is enabled so the older SpeedStep enabled or not makes nor difference. C1E also makes very little difference because modern CPUs will spend their idle time in core C7 instead of C1E. I have never seen a reason to leave BD PROCHOT enabled.

 

[AleXXX666]

When you see a bunch of numbers in the FIVR monitoring table under the Voltage column that do not quite look right (0.3799), that is a good sign that Windows core isolation memory integrity is enabled.

View attachment 353770

This prevents ThrottleStop from reading and writing information to the voltage control register. Many ThrottleStop features will not work correctly when VBS is enabled. Follow the link in my signature to learn how to disable this. After this is disabled, reboot, delete the ThrottleStop.INI configuration file and post an updated FIVR screenshot.

When VBS is disabled, you should be able to reduce the voltage to help control the heat. The 9750H has a 45W TDP power rating. It can run at 65W and beyond but you need good cooling to prevent it from reaching 100°C and thermal throttling. Typical voltage settings for a 9750H are a negative offset of between -100 mV and -125 mV for the cache and between -125 mV and -200 mV for the core. Undervolting can help reduce your peak temperatures by 10°C.

I am not sure how good the cooler is in the NUC. What type of thermal paste did you use and how did you apply it? Honeywell PTM 7950 is popular lately and works well long term. Many pastes can start to fail in the first couple of weeks after being applied.

core iso protects from attacks, why disable it?

 

[Yoshinoa]

I would leave those boxes unchecked. Speed Shift (SST) is enabled so the older SpeedStep enabled or not makes nor difference. C1E also makes very little difference because modern CPUs will spend their idle time in core C7 instead of C1E. I have never seen a reason to leave BD PROCHOT enabled.

Would lowering TPL levels help with temps also?

I read somewhere that PL1 and PL2 are like boost levels for the cores but I don't understand the concept of these settings.

 

[unclewebb]

core iso protects from attacks, why disable it?

When Windows core isolation memory integrity is enabled, it blocks software from accessing the CPU voltage control register. A 9750H with an undervolt can run up to 10°C cooler whether it is in a laptop or in a NUC. One user I have been helping recently with a 13700K on a B760 desktop board has watched his Cinebench R23 scores go from 15,000 to 30,000. That is an exceptional example but it goes to show that some of the latest safety features are not for everyone.

What sort of attacks have you ever experienced? I have been using a computer every day until my eyes are on fire for the last 30+ years and I cannot remember any viruses or attacks. The best prevention is common sense. Avoid running keygens or other questionable .exe files from unknown sources. Stay away from the seedy side of the internet. The extra safe bubble that Intel and Microsoft want to put around everyone's computer can negatively impact performance and usability.

Would lowering TPL levels help with temps also?

Think about it. Would you rather put your hand on a 100W light bulb or a 40W light bulb? Less power equals less heat. Don't they still teach useful stuff like that in school?

PL1 and PL2 are like boost levels

The more you increase the power limits, the more turbo boost an Intel CPU can use and the faster and hotter it will run.

ThrottleStop makes it easy to see so you do not forget what the purpose of each limit is. The PL1 limit is the Long term limit. If you run a long term test like Cinebench, the CPU will adjust its speed so it does not exceed the Long PL1 power limit. For short periods of time, power consumption can go as high as the Short PL2 power limit. The turbo time limit gives you some control over how long the CPU will use the Short PL2 power limit before switching to the Long PL1 power limit.

If you set both power limits equally and set both power limits sky high like I do, then you do not have to worry about any CPU throttling. The downside is that all of this power can make one's CPU as hot as the sun, especially if you have a NUC with an inadequate heatsink and fan.

 

[Yoshinoa]

When Windows core isolation memory integrity is enabled, it blocks software from accessing the CPU voltage control register. A 9750H with an undervolt can run up to 10°C cooler whether it is in a laptop or in a NUC. One user I have been helping recently with a 13700K on a B760 desktop board has watched his Cinebench R23 scores go from 15,000 to 30,000. That is an exceptional example but it goes to show that some of the latest safety features are not for everyone.

What sort of attacks have you ever experienced? I have been using a computer every day until my eyes are on fire for the last 30+ years and I cannot remember any viruses or attacks. The best prevention is common sense. Avoid running keygens or other questionable .exe files from unknown sources. Stay away from the seedy side of the internet. The extra safe bubble that Intel and Microsoft want to put around everyone's computer can negatively impact performance and usability.


Think about it. Would you rather put your hand on a 100W light bulb or a 40W light bulb? Less power equals less heat. Don't they still teach useful stuff like that in school?


The more you increase the power limits, the more turbo boost an Intel CPU can use and the faster and hotter it will run.

View attachment 353873

ThrottleStop makes it easy to see so you do not forget what the purpose of each limit is. The PL1 limit is the Long term limit. If you run a long term test like Cinebench, the CPU will adjust its speed so it does not exceed the Long PL1 power limit. For short periods of time, power consumption can go as high as the Short PL2 power limit. The turbo time limit gives you some control over how long the CPU will use the Short PL2 power limit before switching to the Long PL1 power limit.

If you set both power limits equally and set both power limits sky high like I do, then you do not have to worry about any CPU throttling. The downside is that all of this power can make one's CPU as hot as the sun, especially if you have a NUC with an inadequate heatsink and fan.

Ah ok. So let's say I changed PL1 & PL2 to "65" equally does that mean I'm sending 65 watts of power through to the CPU in short 65w bursts and at 65w long bursts. Then once I get that figured, I would have to adjust the CPU core and cache volts so I send enough power and don't get any errors right.


I'd honestly prefer cooler and quieter gaming over minimal performance loss.


Idk how you guys do it but going super crazy with heat and noise, I'd throw my computer away.

 

[unclewebb]

Setting a power limit to 65W simply tells the CPU to slow down if power consumption ever reaches 65W. It is only a limit. It will not force your CPU to consume 65W all of the time.

An undervolt setting that works reliably at one speed should be retested if you plan to run your CPU at a much lower power limit or lower CPU speed.

The best way to get a better understanding of the power limits is to run something simple like the ThrottleStop TS Bench test. While the CPU is loaded, adjust the turbo power limits and press Apply. Watch the main screen of ThrottleStop for any CPU speed changes when you lower the power limits. Watch for any changes to the power consumption that ThrottleStop reports.

Idk how you guys do it but going super crazy with heat and noise, I'd throw my computer away.

Some manufacturers are completely sacrificing usability when going after maximum performance. I prefer using my 10+ year old laptop. It is not a gaming laptop anymore but at least it has one nice feature. It does not burn through my lap. No oven mitts required.