Problems? See this thread at archive.org.
My throttlestop keeps closing itself. I have not had any updates to the os. Do i need to reinstall TS?
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Not yet since my ac charger 230W is simlpy not powering up the laptop. Ac charger disconects on load I need to send it to warranty
It is gaming and video encode mostly -
On my 8250U, I found I could undervolt -200mV when having turbo boost disabled (<2.1GHz) but only -140mV with turbo boost enabled.
As many poeple have stated, a lot of the time the benefits brought by "efficient clock speed operation" is nullified by having a CPU that quickly ramps up to max speed to complete its task in the shortest time possible. -
To enable PowerCut you need to first select and apply a fixed VCCIN voltage. I use 1.80 V for this setting on my 4th Gen 4700MQ. I lose stability at 1.75 V. Some CPUs can go lower. I have gone as high as 2.29 V without starting a fire. Once the FIVR monitoring table shows that you are using a fixed VCCIN voltage, then you can try to enable PowerCut. Only do this when your computer is idle.
Now this is starting to make sense. It is the Clamp option in the power limit register that determines if the CPU will throttle below its base frequency. When Clamp is checked, the CPU will throttle as much as necessary to bring power consumption down to the power limit. If Clamp is not checked, the CPU will only throttle down to the base frequency but not below it.
Play around with the Clamp option while your CPU is loaded. When checked, power consumption might go down to the rated TDP, 15W. I do not think an unlocked BIOS is going to make any difference.
I will have to find a new hobby if I ever switch to AMD. It has been a lot of fun trying to support as many Intel CPUs as possible. Some new users of TS do not realize that it supports almost everything from Core 2 Duo to 11th Gen.
There are some major changes coming with Alder Lake. It might finally be the end of the road for TS.
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No idea. I do not own or have access to either of those so I am not sure what is possible.
For Alder Lake, Intel is making some major changes. I have no plans to buy any new hardware so ThrottleStop will probably not support these.
I say that every time Intel releases something new. If you search this forum, you might find that I have said that once or twice before.
Kind of like one of those crazy guys that sits on the street corner with his sign,
"The End is Near".
Last edited: Apr 27, 2021dmanti, Vistar Shook, 4W4K3 and 4 others like this. -
Wait, can't we just buy you the hardware then?
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I recently picked up a generic white-label Chinese mini PC with a Celeron J4125 CPU in it w/onboard Intel HD Graphics 600. I have TS installed on it, but my options are quite limited (not surprised given its mix of old and new tech). The clock speed reporting on it is out of whack or at least I'm not sure what scheme it uses, but I love TS's ability to monitor power and temps and update them in realtime on my taskbar. The limit reasons indicators are working for me too which is also helpful.
My next goal right now is to mod the BIOS on it to hopefully get around the 10W TDP and the power limits currently set in the AMI Aptio V BIOS. After 12 or 13 seconds of turbo at 12W, the 10W power limit kicks in. I have modded the cooling system on it, so my next goal is to extract a bit more performance from it. Fun times ahead.Papusan likes this. -
I did exactly what you said about powercut but it's still disabled after all.
Clamp is not checked from the beginning.
My new thesis is that there is a hidden AVX offset. For SSE load it can sustain 2.8G but AVX/AVX2 load drops it to 2.6G after boost time is used up even though the power consumption is still below PL1. The red PL1 limit could be a bug. However, AVX Offset in FIVR is greyed out, unchecked, and 0.
The closest thing to TS on AMD side is https://github.com/FlyGoat/RyzenAdj and GUI built on it https://gitlab.com/ryzen-controller-team/ryzen-controller/. You can't undervolt there but for removing throttle it works fairly well. I heard that the author FlyGoat fries his laptop's VRM because it works too well.
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Some Dell laptops have clock modulation throttling problems. When ThrottleStop first starts up, it will try to automatically fix any issues like that.
If all you want to do is monitor your CPU or GPU temperatures, why not run something like HWiNFO64?
If you want to see some temperature numbers in the system tray, try Core Temp or RealTemp.
I need to find a new hobby. Torture testing my CPU is probably not healthy for me or my CPU.
![[IMG]](images/storyImages/E2Fgum6.png)
FrozenLord, 4W4K3, Vistar Shook and 3 others like this. -
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Get a 11900K or even better a W3175X and torture it with AVX512
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Because HWINFO64 use more clock cycles and not as power efficient Getting used to ThrottleStop is also a good thing to have in your backpack for later. Double gain unclewebb
Spartan@HIDevolution and tilleroftheearth like this.
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If your main concern is reducing power consumption on battery, you may want to check out the long discussion in the Windows 10 forum. As Unclewebb has pointed out, clock speed is not the only determinant of power consumption. In fact, a higher clock speed may allow for tasks to be completed more rapidly and for the processor to spend more time in lower C states where it will use very much less power. Speedshift can be your friend here.
Hillbrane likes this.
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Different CPU generations respond differently to Clock Modulation throttling. Even when set to 12.5%, my 10th Gen desktop continues to use the full multiplier and it runs at full speed externally. The speed it is running at internally is much different. Clock modulation basically tells the CPU that instead of doing something, you should do nothing. Kind of like when you see a work crew fixing the road. There are always a few workers doing some clock modulation throttling as they almost fall asleep and fall off their shovels.
Some CPU generations will start by slowing down internally when you are using clock modulation throttling but then after that, they will start to decrease the maximum CPU multiplier. I am not sure what different CPU generations do or what mobile vs desktop CPUs do but it sounds like your 7820HK follows this pattern.
My first question is always, why? What are you trying to accomplish? Using clock modulation throttling makes the CPU run inefficiently. Using this feature to slow your CPU down will make it feel sluggish and your CPU will end up consuming more power when you are actually trying to do something with it. If you want to save power, make sure your C states are working correctly and make sure your cores are spending at least 99% of their time in the C7 state when your computer is idle. That is how modern CPUs save power.
The only purpose of clock modulation throttling is to control your CPU when the heatsink falls off. There is no other practical use for this extreme throttling method. Even Dell came to their senses and have stopped using clock modulation throttling.
When you see something weird, show me a picture. My specialty is coming up with reasonable explanations for the bizarre. Maybe I need my own TV series.
If you want to create a slow and sluggish CPU, set Speed Shift Max to 8. That will slow your CPU down to a crawl. Your CPU will be completely inefficient at this speed. Someday soon I will enable different Speed Shift values for each profile. My programming productivity tanks after the long winter is over. I would rather be outside. You could also set Speed Shift EPP to 255. That is designed to slow a CPU down as it transitions from 800 MHz to full speed. Some recent microcode update might have changed this a little. Intel and others have realized that getting up to full speed quickly is not a bad thing.
This is normal. When booting up or resuming from sleep, the CPU will trigger some throttle warnings. This likely happens before the power limits have been setup correctly. Nothing to lose sleep over. Same with your gaming temps. Intel CPUs can run night and day at 90°C. You are more likely to get bored with your computer long before it dies from heat exhaustion.
Always good to hear when someone notices this feature. I started programming when CPUs ran at 7 MHz or less. It is difficult for me to write code that is big and bloated. It is not in my DNA.dmanti, Hillbrane, Papusan and 1 other person like this. -
Ok so:
- I have no clue what Speed Shift Max is. If you meant Speed Shift EPP then I thought that setting it to 8 would make the CPU "faster" since you are forcing a preference for higher frequencies.
- I completely understand what clock modulation is now and I completely agree: it looks totally useless and inefficient.
- I'm looking for battery life maximization but I can't sacrifice too much in terms of performance since I'll be using this configuration when I'm making some measurements on the fly (meaning that the PC still has to run scientific software to acquire and process the measurments signals without lagging but at the same time I might as many hours without recharging)
I was trying a way to lower the operating frequency under the base value because:
- basically no one carries out energy per job (or task) benchmarks which is the only REAL way to get direct info about efficiency
- I was thinking that lowering the frequency would grant me more battery life due to the CPU power being highly non linear with respect to its frequency consumption (since higher freq = higher voltage).
I might be wrong (or it could be not as simple as that) since completing a task faster might let the CPU transition into a different Cstate which is something highly non-linear in the opposite way (even though I'm not sure this happens is some kind of software is still charging the CPU).
Now, switching to TS behavior I noticed that:
- Disable turbo works correctly but the SpeedShift EPP behave drastically different if the Overclock checkbox inside the FIVR is set ON/OFF.
- Simply checking the Overclock in the FIVR throws in more juice (V) to the CPU even when working at the same frequency (2.9 ghz) causing higher consumption (see example at EPP = 8)
- The point above also causes way more conservative behavior even at higher EPP values (for example EPP = 200) where I get much lower operating frequencies when Overclock is set to OFF
Is there a reason for such behavior? If more so considering that at EPP = 8, everything seems identical, even the operating frequencies, but the voltage is very different and I was like: wait, maybe by disabling the "overclock" I also disable the undervolting but the one with "overclock" OFF actually has a lower voltage so I'm kinda confused.
PS: 4 threads because I've disabled hyperthreading.Attached Files:
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Over 7 years ago, the N3540 was an underpowered low end CPU. As you installed stuff on your computer, it has probably got even slower.
If the CPU is always at 100% it is going to stutter. When your computer was brand new, it was probably not powerful enough for 1080p60. You will need to purchase a new computer or run a task that is less demanding.
Let me get out my big red crayon.
That is the Speed Shift Max box that I talked about. If the Speed Shift box is checked and you change the red box to 8, your CPU will use the 8 multiplier.
I do not think you have to do too much for low power consumption when running on battery power. Some people like to disable turbo boost or use a really high Speed Shift EPP value so the CPU does not get up to speed too quickly. I have no idea if either of these ideas actually work. Making the CPU slow, sluggish and inefficient might not result in any power savings. It depends on what you are doing with your computer. I almost always use a desktop computer so I am not an expert on maximizing battery run time.
The Overclock box allows one to overclock both the CPU core ratio on a K series CPU and the cache ratio.
Likely during your testing, the cache speed changed so the CPU increased the voltage so it would be stable. Look in the FIVR monitoring table to see if the cache ratio changes when toggling the Overclock box. That might explain a few things.
With a desktop computer, I usually set EPP to 0 for maximum performance. My 4th Gen laptop does not use Speed Shift Technology so I have not done any thorough Speed Shift testing.
I added a new feature to ThrottleStop which might help you with your testing. Instead of having Ring Down Bin hiding in the Overclock box, now it is separate. When Ring Down Bin is checked, this keeps the cache ratio 3 less than the core ratio. On 10th Gen processors, this is almost always a good thing to do. Trying to run the core and cache at the same ratio takes a significant increase in voltage. Clearing this box when going for a world record might be OK. For everyone else, best to keep it checked for daily use.
With the new TS version, the Overclock box will only apply to the CPU cores. Your testing might go smoother now that the core ratio and cache ratio are completely separate. I will PM you a test version shortly.tilleroftheearth, FrozenLord, Papusan and 1 other person like this.
The ThrottleStop Guide
Discussion in 'Hardware Components and Aftermarket Upgrades' started by unclewebb, Nov 7, 2010.
