The ThrottleStop Guide

Complaints? Ok. If you insist...

I can't believe ThrottleStop won't run on my Commodore 64! How am I supposed to OC my 64 so it rivals a Kaby Lake?

 

I think current version is stable and do things perfekt. So no rush...

 

@unclewebb

Would you recommend running the newest Throttlestop at all times? Or does that only proof necessary for the newest gen CPU's?

 

@jaug1337 - Your signature contains a wide variety of computers so it is hard to say if you need to run ThrottleStop all of the time or not. I run TS all of the time on all of my computers because I know it does not take up a significant amount of CPU usage or memory. For each computer, I turn off as many of its features as possible that I do not need. I only leave enabled what is needed. One computer might need ThrottleStop for overclocking or for voltage control or throttle control or just for temperature monitoring or sometimes, I run it just because I like it.

Maybe you need to upgrade to an Amiga. I have got one of them hiding in my closet.

One bug I found in the Obsidian edition is that when switching profiles using keyboard short cuts, the profile name does not change. That has been fixed up for the next release and I have a couple of minor features I am adding to try and prevent any unnecessary scroll bars showing up in the monitoring table. Pretty minor stuff lately.

 

Maybe if we could monitor cpu heat, frequency, memory usage during gaming and the end of that it would create a digram would be awesome. Or these adding features would grow Throttlestop and would require extra resources?

 

I am using Throttlestop all the time and really enjoy what you have done for us!
Please let me know how I can do something good for you

At the moment, I am however sometimes experincing freezes when my laptop resumes from standby.
It will wake up for about 4 seconds - I am able to enter the first few letters of my password in the Windows login mask - before it freezes.
There is no bluescreen, no log, simply nothing.
It will just freeze and be stuck until I forcibly reset the laptop...
However, this does not happen at every resume from standby and has happened on battery as well as when plugged in.
Has anybody experienced something similar or might be able to point in a general direction?

Thanks.

 

Being able to set a max EPP speed shift range for each profiles, rather than a global setting in TPL would be nice.


Envoyé de mon iPhone en utilisant Tapatalk

 

@JKnows - I have been thinking about adding some graphing options to ThrottleStop. It would be an optional module so it would not result in any significant bloat. It might be a while before I get around to this. Maybe next winter if I am bored.

@FrozenLord - Freezing problems can be caused by a lack of voltage. When under volting, most people do some stress testing and adjust the voltage as low as possible. This amount of voltage might be just enough for that particular benchmark with the CPU warmed up but it might not be enough for real world use when the memory and CPU are still cold and the CPU is lightly loaded. I had a weird issue with freezes when resuming with my Y510P - 4700MQ. That is why there is an obscure option in the FIVR window called, "Use default Cache Ratio during Windows Stand By". That tweak worked for me but it sounds like your laptop needs some other minor adjustment.

A stable CPU should be able to run fully loaded or idle at any speed. I like to test by loading up 8 threads of Prime95 and then I adjust the multiplier up and down while Prime is running and I like to adjust the Clock Modulation too. You can set up different profiles with vastly different MHz settings and then see if you can switch profiles while fully loaded without any freezes. If this is all OK, try bumping up your voltage just a hair and see if that makes any difference.

@Takeishi - I have been thinking about moving the Speed Shift Min Max values out to the main screen so they can be controlled for each profile. I like Speed Shift because it gives a user better control of the CPU speed compared to the SpeedStep - Set Multiplier function but it has not caught on with many enthusiasts. The vast majority of desktop owners on overclock.net still like using the slow and sluggish and obsolete Windows Balanced profile. Maybe adding better control of Speed Shift will help them see the light but probably not. When I start talking Speed Shift they think I am peddling snake oil over there.

 

Hi friends. I have read the guide at the first page but haven't find a solution for my issues with Throttlestop, so I really need your help.
First thing is whenever I want it to work I have to switch between profiles (like switch to "game'' then back to ''performance''), otherwise it just doesn't work.
Secondly, since the first time I use TS, my CPU multiplier always stays at 8 (lowest), so I have to start TS every boot.
Btw I'm using a thinkpad T420 on Windows 10. And bios settings are default.
Thanks for reading.

 

@normalthinkpaduser - If you are having problems, post some screenshots so I can see what CPU model you have as well as how you have ThrottleStop setup. The more screenshots, the less guessing I have to do. If you need to switch profiles to get it to work then post a picture of each profile. What is your original reason for using ThrottleStop? What are you trying to accomplish with it?

If your CPU multiplier is always at 8 then usually you will have to disable the BD PROCHOT option in ThrottleStop to get your multiplier working correctly again. Run the TS Bench test with it set to 1 Thread so I can see what multiplier ThrottleStop is reporting when your CPU is loaded.

 

Is it possible to get TDP to be part of the profile? I'd love to have a low TDP (20W) while on battery but a normal TDP (45W) while plugged in.

Also, does setting values in FIVR apply to all CPUs or just CPU0? I have a dual socket machine and would love to up my turbo settings.

 

@mrtivo - Per profile TDP settings is on the things to do list too. I prefer to slack off during the summer so not sure when I will get that new feature done.

I do not have any dual socket hardware to test with so I have no idea if the FIVR settings will apply to both CPUs. This might depend on how many cores each CPU has. With a pair of 8 core CPUs, FIVR might be applied to both of them. Not sure how you can test or monitor for this. Maybe HWiNFO will report both CPUs correctly.

 

For me, the only options I found to limit clock speed is a TDP option in the Windows power settings (something like Intel dynamic "stuff" framework) and min/max EPP in ThrottleStop, and only the first one can adapt to AC/battery power. It also only gives a choice of 2.1 and 2.6 GHz.


Envoyé de mon iPhone en utilisant Tapatalk

 

I'd happily try out a test version to verify that functionality for you.

And what about per profile TDP limits?

 

By the way @unclewebb I know you've always said to people to only use "save voltages immediately" if they really know what they're doing, however there is a way this isn't necessary to be 100% safe. It requires a little diligence on the end of the user, but since I've never seen you mention it at all, I'm wondering if you don't know about it?

Here's what I do when I want to test. I've adjusted all four profiles for my throttlestop program. I use #1 for overclocking and #2 for "tuned stock" which is my undervolted stock-speeds profile, we can forget about the other two for now. I have set up throttlestop how I like it and I go to profile #2 and click "save" on it. Then, I can adjust the FIVR for profile #1 as I please, and simply switch to profile #1 in throttlestop for testing, but never hitting "save" on throttlestop's main window. I can save voltages and clock speeds and whatnot on the fly, but since throttlestop is saved to start up on my safe profile #2, if I ever crash in profile #1 while testing an overclock, when I restart windows, even if TS is set to start up on windows boot, it'll still start safely, and as you know you can edit all the profiles in the FIVR window without ever changing the one you are currently on.

So... perfectly safe! And you can save voltages immediately too. Anything you want. Just never "save" the main window while on an untested profile. Set multiplier ticking and unticking, overclocking/underclocking, all that works perfectly.

So just in the off chance you've never thought about using it that way since I often see you recommend to not save voltages, I figure that might work for people who want to really get to it

 

@D2 Ultima that's exactly what I do too. I leave profile 1 exclusively for testing and if things go south it boots up on profile 4.

 

Hi , i have been using Throttlestop for quite a while and it's been doing a good job , i started undervolting my i5 4210u and i managed to get a stable -70.3mV offset on my cpu / cpu cache and iGpu , but i notice that my cpu reaches it's TDP limit when i use the iGpu so i tried to actived the Powercut features , but when i check it , instead of showing " locked " they show me " Disabled " and i don't know why

 

@Poui - The PowerCut feature was deliberately designed to be a little obscure to encourage people to use Google or better yet, simply read the included ReadMe file. Page 429 in this thread is where users were discussing PowerCut.

http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/page-429

The ReadMe file also explains how to enable PowerCut. The secret is you need to adjust VCCIN first before enabling PowerCut. Based on user feedback, PowerCut seems to work on the 4th and 5th Generation U CPUs so you should be able to run your CPU at its full rated speed indefinitely as long as it doesn't overheat. CPU World shows that a 4210U can run at a maximum of 2400 MHz when both cores are active.

http://www.cpu-world.com/CPUs/Core_i5/Intel-Core i5-4210U Mobile processor.html

@D2 Ultima and @TBoneSan - Always great to hear how other users use ThrottleStop. I tend to be a single profile kind of user.

 

Well i tried to use Google but i don't find any information about Powercut except this post and I just don't have the time and courage to try to find an explanation in a 600 ~ pages thread , I also did what was written on the ReadMeFile but it still refuse to enable , and I think i understand why

My cpu already reach 2.4 Ghz on 2 core and it's really cool ~ 65 C at 40% fan speed

I thought Powercut removes the power limit , therefore it should let my iGpu reaches it's max gpu clock speed 1 ghz while having the cpu at his max clock speed 2.4Ghz on both core , even if I do what is written on the ReadMeFile it still doesn't work

When both my gpu and cpu are at 100% load , the clock speed of my cpu throttles to 1.7Ghz and iGpu to 700 - 800Mhz with the temps not exceeding 65C* with the fan at 60% ,what i want to reach with Powercut is a stable 2.4 Ghz on Cpu and 1000 Mhz on iGpu

 

@Poui - Can you post a screenshot of your FIVR window so I can see if PowerCut has been setup properly. Can you also post a screenshot of the TPL window? PowerCut does not remove the power limit. It tricks the CPU so it no longer reports power consumption correctly. While you are testing at full load, when your CPU drops down to 1.7 GHz, post a screenshot of ThrottleStop with Limit Reasons open so I can see what is causing the throttling.

My 4700MQ looks like this when PowerCut is working correctly.



When running Prime95, the CPU runs at its full rated speed and it is only reporting 1.6 Watts. No PL1 or PL2 throttling. It is not until the CPU reaches the thermal throttling temperature that it starts to throttle.

It is possible that PowerCut does not work on your CPU but other users with 4th and 5th Gen U CPUs posted in this thread that it was working for them so it might just be a problem with how you have ThrottleStop setup. Make sure to only enable PowerCut when your CPU is idle.

 

The undervolt is totaly stable , but i think that my " issue " isn't an issue but it's the way my cpu work , the base clock of my cpu is 1.7 Ghz and it reaches it when both the cpu and iGpu are both at full load like every other locked cpu

 

With no load on your CPU, cycle the PowerCut check box off and on and then press the Apply button. Both of our CPUs are using the same microcode 0x1C so I am not sure why PowerCut is not working on your CPU. When I hit Apply, the word Lock shows up in the monitoring table which confirms that VCCIN is now locked and PowerCut shows as Enabled.

Without this working, there is not likely anything besides under volting that you can do. You can try setting the TDP Level Control to 2 but this setting will likely be ignored when running high stress testing programs like FurMark.

 

Hi, I need some help with ThrottleStop.
I have the latest version of ThrottleStop installed on my lenovo y50-70 with Intel Core i7-4710HQ
The problem I am facing is thermal throttling at 60C. Which seems to be the lenovo default for this model. BIOS does not allow me to change this during boot (no options). I have already cleaned my laptop, installed a genuine clean windows and reapplied thermal paste.

Every time I use ThrottleStop to disable BDPROCHOT, my system crashes under stress (gaming-75C-No overclocking). This problem has cropped up after TS version 8.4 and above. I was able to use TS 8.3 without issues for a long time. My default config is to disable C1E, Turbo, BDPROCHOT and enable SpeedStep. I don't hold down the CPU clock modulation or Multiplier. Can you help with why the later versions of TS are crashing ?

 

I have 2 option of buying X9000 (2.8Ghz) or X9100 (3Ghz)
X9000 is support with my mobo (FSB 800); and
X9100 is not support (FSB 1000), so I will downclock it, so speed of this processor is 2.3Ghz only.

X9000 (2.8Ghz) support with my mobo so it can set multiplier using ThrottleStop up to 18x (3.6Ghz)..
Then in X9100 (2.3Ghz), Can I set multiplier to 18x too?

If can, maybe I will get X9100 that 4x cheaper than X9000
If not, maybe I will get X9000 for maximum speed although it's expensive

~ Thanks in advance ~

 

@Loki1994 - Intel CPUs do not start thermal throttling at 60°C. Something else is going on. Open up the ThrottleStop Limit Reasons program to see what it shows. I know Lenovo uses a variety of different throttling schemes that kill performance in the name of protecting their laptops but you can usually work around these problems.

You need to start by stress testing just your CPU and find out what speed it can run at without crashing or overheating. Are you using ThrottleStop to under volt your CPU? Some people under volt too much and then lose stability because of it.

Can it run Prime95 and LinX reliably, even at a reduced speed to prevent it from getting too hot. If your computer is not stable while gaming, it could be either the CPU, the memory or the GPU or the GPU memory or just an unstable game or an unstable graphics driver version. There are so many variables that it is very difficult to try and troubleshoot a stability problem when gaming. When things degrade and get worse over time, it could be a CPU degrading or the memory might be failing. You might have also changed your graphics driver or downloaded a patch or two from Microsoft or Nvidia or whatever game you are playing. After you have tested the CPU and found out if it is stable, then try running a simple benchmark like Heaven that you can loop for an hour to see if your computer is still stable. After that, try running some other tests like some of the 3D Mark benchmarks.

I am using the latest version of ThrottleStop and my computer is not crashing. I can run the crap out of my laptop with Prime95 and LinX and it never complains. My 4700MQ gets up to 100°C but it does not crash. After a while, common sense prevails and I stop one of these torture tests. My computer does not reboot just because I am treating it like garbage. Post a picture of exactly how you have ThrottleStop setup including the FIVR page so I can see what voltages you are using.

@Gilang Luqman - Why stop at the 18 multiplier. I have heard other people using the 20 multi on those processors.
Are you sure your board will boot up with an X9100 in it? I do not have a lot of experience with this but I know if a board does not have a CPU model in its supported CPU list, some boards will lock up when it goes to post and it will not go any further. Other boards will boot up but the CPU multi might be stuck at a safe number, usually 6 which can easily be fixed with ThrottleStop.

In theory, ThrottleStop should let you adjust the multiplier sky high no matter what CPU you get as long as they boot up. If you go for the X9100 and it doesn't work, I will buy it off of you for testing purposes. I also have an old laptop with an 800 MHz board and I am curious if it would work with an X9100. The EBay price on these is worth the risk.

 

@ unclewebb - Thanks for fast reply...
So It is possible increase from multiplier x11.5 to to 18x/20x
If so, I will get X9100.
It's cheap, so it's good for experiment

It's old thread, Here someone run X9100 in 800 FSB board using pinmod (need put some wire in socket hole) to downclock the FSB : http://forum.notebookreview.com/thr...40-useful-info-for-pll-modders.605383/page-15
Consequence X9100 run 800 FSB is the speed will reduce, maybe 2.3Ghz
Maybe He ran a ThrottleStop to get 3Ghz. Without ThrottleStop, multiplier will down.
So if I can raise to x18 - x20, I will interesting to get it

 

As far as I know, this should be no problem. As long as you can get it to boot up, ThrottleStop should be able to take care of the rest.

 

I tried to do all what you told me but it still doesn't work , but I think it has something with my bios update , i remember you saying that the " Powercut " thing is just a bug in Haswell cpu and i did a couple of bios update ( from A06 to A12 ) , the good thing with thoses updated bios is that i can use my iGpu to record ect and my motherboard can even support a E3-1XXXv3 ( a server graded cpu )

So i think that one of the bios update might have patched the " exploit " , i might be totaly wrong but who knows it's something i didn't mention earlier

 

This post has a user running a newer 5th Gen U CPU and the PowerCut feature is working for him.

http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/page-429#post-10213283

ThrottleStop shows that he is using microcode version 0x1F. We are both using microcode version 0x1C so it is odd that PowerCut works on my CPU but not yours. I thought if Intel fixed this exploit that it would show up as a different microcode version but maybe not. You could try going back and installing older bios versions if possible but not worth it if that screws up the iGPU.

Thanks for the additional info. PowerCut is a great feature when it works but there has been very little feedback about PowerCut during the last year so I am not sure what or when something might have changed.

 

This is a completely minor/cosmetic thing, but I can't get Throttlestop to minimize to notification area only (it still has an icon/tab on the taskbar). I thought this was fixed in 8.4x -- or at least a workaround with some notification area icons script -- but I tried the script and it's still sitting in the taskbar (along with an icon in notification). Am I doing something wrong? Windows 10 Home 64-bit.

 

@agmy - Is Task Bar checked on the main screen of ThrottleStop (lower left)? Make sure that is not checked and if you are still having problems, run the clear Windows Icon Cache script again. Every time you run different versions of ThrottleStop or move ThrottleStop.exe, you usually have to run this script.

http://www.digitalcitizen.life/how-clean-notification-area-icon-cache

 

I had the name problem recently when I moved the throttlestop folder off my desktop and into program files. I had to rebuild the icon cache. There's a link to a how to in the throttlestop folder if I remember right.

Sent from my Nexus 6P using Tapatalk

 

Hi @unclewebb first ofall thanks a lot for TS it works like a charm, i have a lenovo y40-80 i5 5200u and a dell xps l502x i5 2450m, i have only try it on the lenovo but i think i make a huge mistake hahaha , in the TPL i checked the TDP level control and then check the lock box, no big deal i said so i erased the .ini and even deleted the folder and restart but the offst and the box was still checked, do i have to format so i can et that back and all the offset to default?Other thing i was running on a -100mv on core and cache, all things seems normal i can run games and programs but i get yellow message on limit reasons, even if i change it to stock i get edp current on core gpu and ring , thanks a lot for your help and if you need a screenshot just tell me!

 

/facepalm. I don't know how in the 30+ minutes I was trying to get this to work that I didn't notice that option. Yes, it really was that simple (unchecking taskbar). Thank you!

 

@mcflygarcia - I need to put a warning on the Lock option because it can be a challenge to get ones CPU unlocked after doing this. Windows 10 uses a hybrid boot feature so depending on Windows and your bios, when you reboot, it might not reset the CPU to its default specs. The Lock option is written directly to the CPU so you need to do a full shutdown or reboot to get rid of this. When you click on the Power off button in the main Windows menu, hold down the Shift key and continue to hold the Shift key down. This forces Windows to do a full shutdown. After you start up, the CPU should be back to normal. Run TS without a ThrottleStop.INI file and it should create a new one for you without the Lock option checked.

Here is an excessively long article that fully covers hybrid boot in Windows 8 but Windows 10 should be the same.

http://www.hecticgeek.com/2012/12/disable-hybrid-boot-windows-8/

@agmy - Should I make the default value for that box unchecked? Don't worry. You are not the first person to gloss over that option.

 

@unclewebb Thanks a lot for the quick reply! Shift did the trick and now its stock, but should i turn it on? Cause my procesor only goes to 2.6ghz but its rated at 2.7ghz already change the multiplier to 27but seems that it doesnt likes the 27 multiplier,btw do i have to do anything to get rid of the yellow edp current ? again it seems to be working just fine as it is

 

@mcflygarcia - The 5200U only uses the 27 multiplier when a single core is active. It is designed to use the 25 multiplier when both cores are active. During normal use, the CPU will rapidly oscillate between these two multipliers depending on how many cores are active.

Try running a single thread of the TS Bench test to see what multiplier you are getting during that test. You should never see the full 27 multiplier in ThrottleStop but that does not mean that it is not working. There are always Windows background tasks and various other tasks that will wake up the second core during any benchmark testing you are doing. That constantly reduces the maximum multiplier.

If using the Set Multiplier feature, make sure the Non Turbo Ratio is set to zero. Most laptops by default have the Non Turbo Ratio set so this prevents Set Multiplier from working correctly. I tend not to use Set Multiplier. Instead, I just set the Non Turbo Ratio to 1 to get maximum performance.

The U CPU is a low power CPU. Intel designed these things so they will throttle so stuff showing up in yellow or red in Limit Reasons should be expected. Only the very lucky end up with a U CPU that can be tweaked so it doesn't throttle.



Before doing any testing, you can click on the headings in Limit Reasons to clear the previous throttling records. A box in red means throttling is in progress and a box in yellow means that there has been some previous throttling recorded. These boxes can show up in yellow during the boot up or resume from stand by process. That's not important.

 

@unclewebb thanks man i really owe you a beer! well these is my current config,if you see something thats wrong tell me,once again thanks a lot!

 

@mcflygarcia - Everything looks pretty normal. The bios has locked your turbo power limit at 15 Watts so there is not much you can do about that. Is PL1 or PL2 throttling causing any problems for you during normal use? There is a trick available called PowerCut that might work on your CPU. When PowerCut is enabled, power consumption is not reported correctly within the CPU so after you do this, it will not realize that it should start throttling because it will not realize that it is at or over the 15 W TDP limit. I am curious if this trick will work on your CPU but this is sort of like jumping into the deep end of the pool. If you do not feel comfortable doing this then no problem.

Towards the bottom of the ThrottleStop ReadMe file, it will explain how to enable PowerCut if you are interested.

Trying this is only necessary if you like to run your CPU at full speed and find that PL1 or PL2 throttling or EDP throttling is holding you back.

If you try this and decide that this is not for you, set the VCCIN voltage back to its Default setting and then you will need to do a full Windows reboot to reset the CPU. I think someone earlier in this forum with a similar 5th Gen CPU had some success with this but this bug might have already been fixed on your CPU. It won't hurt anything to try.

Your CPU is reporting an average multi over 26 so that confirms that the 27 multi is being used at least some of the time. Running a single thread of the built in TS Bench test might get you a hair closer to 27 if you do not have too much background stuff running on your computer. It is presently bouncing around between 26 and 27, just like it should be. If PowerCut works on your computer, you might be able to run a stress test and fully load the CPU while maintaining the full 26 multiplier without any sign of throttling. That's the theory.

Edit - CPU World shows that the multiplier when 2 cores are active is only 25, not 26.

http://www.cpu-world.com/CPUs/Core_i5/Intel-Core i5-5200U Mobile processor.html

Edit - Here's the last guy with a 5200U that had some PowerCut success.

http://forum.notebookreview.com/threads/the-throttlestop-guide.531329/page-429#post-10213283

 

@unclewebb ok men iwill give it a try and report back, im not at my home at the moment so will try asap.
Once again thanks a lot!

 

hi, i've disabled c-states by editing registry (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Intelppm) on my ASUS UX501VW, but my multiplier is reduced too.

is it possible to disable c-states without disabling turbo boost?

 

On some laptops disabling c-states can have some unintended consequences, like automatically disabling turbo speeds. That is not always the case. Maybe a way laptop maker controls heat-power consumption.

I get around this by checking ThrottleStop's slick c1e box; it disables the laggy c1e states but permits full turbo speeds. Really a nice performance trick!

 

The only reason why i like to disable c-state by editing the registry is that i don't hear any coil whine on my 6700hq anymore.

So if there is no way to save turbo boost while c-states off i have to choose between annoying buzz and power. Sad.

Thanks anyway.

 

Disabling all of the C States will reduce the maximum multiplier but it does not completely disable Turbo Boost. On a 6700HQ, if core C3, C6 or C7 is enabled, the 6700HQ can use the 35 multiplier when a single core is active. If C3, C6 and C7 are all disabled, the maximum multiplier should be 31 which isn't too bad. Compared to irritating coil whine, that might be a worth while sacrifice.

Actually, a check mark in the C1E box enables the C1E C State.

 

Ops! Always make that mistake...

 

@unclewebb I would like thank you for this great software. Last month I got a new Thinkpad t470P with Core I7-7700HQ. This is a 14” laptop with single fan for cooling so the first thing I did was install TS and undervolt CPU 140mV. That did wonders for the power consumption and temp. I can now run linX all day without throttling. Thank you!

With the throttling out of the way on to my problem: Unlike most people on this forum I would like my CPU to maintain the deeper C-states more specifically the “Package C states” as this not only seems to impact battery life but benchmarking also indicates that the CPU runs both faster and cooler under load and idle.

The problem is that The CPU “loose” the all the Package c-states from C10 to C2 after running for a while, could be from a few minutes to a couple of hours after boot. When it loses the package c states they will not be active again until reboot, sleep or timeout from “turn off display” XX minutes”. It does not help to keep C0 below 1-2%.

When on battery the idle “Package Power” increase from about 0.4Watt to 1.5-2W and I see a drop in battery runtime from about 10 hours (lite use) to about 5-6 hours.

The same thing happens with and without docking station. Not that I care when AC are connected.

To trouble shoot I have installed another instance of windows 10 (dual boot) but the problem is there no matter what I try, with or without TS or any setting or registry hack

I installed windows without internet connection and without any downloaded drivers the CPU did “Package C2 consistently but no deeper c states. My plan was to install drivers one by one but as soon as I connected an Ethernet cable windows update installed 14 drivers in one go including the Lenovo PM driver. The only thing that have made a difference in the c states was installing a new driver for the Intel 8265 AC card. After the install, I saw package C10 for the first time but that don’t help when losing all after a few minutes.

Any tip would be appreciated. I have tried to find hidden power plan settings that could influence the C states but no luck so far.

 

The program Shutup 10 will allow you to block windows updates, but you need to throw that on a flash drive and put it on first.

 

@ebec - Interesting. I recently bought a Lenovo E570 for my wife and it also had some Package C State problems. I tried a few different bios versions but it didn't solve the problem. When starting up while plugged in, it would typically be limited to Package C2. After doing a suspend resume cycle, Package C8 would immediately start working. I never saw Package C10 and I never came up with a solution for this problem. The E570 did not seem to change over time like you are experiencing but obviously something is not right.

I always turn off Windows 10 forced updates to avoid the random changes it brings.

Intel is well aware of these kind of problems that some manufacturers have so Intel wrote a program called BITS, the BIOS Implementation Test Suite.

https://biosbits.org/

It is a small program that you can boot up to from a USB key so you can see what C States your CPU is using before Windows boots up and loads its smorgasbord of drivers. This can help narrow the problem down to whether this is some sort of BIOS problem that Lenovo needs to fix or if it is some sort of Windows driver issue that you might be able to track down or perhaps a Lenovo specific program that is causing this.

I have a gut feeling that Lenovo is guilty but trying to track this down and get Lenovo to fix it is going to be an uphill battle. If you ever find out anything, definitely let me know. My part time wife took her new laptop so i will not be able to do any further testing for a while.

 

@Falkentyne on my test installation I can just turn off windows update service. Before I connected to the network I had enabled the policy “Do not include drivers with Windows Update” but that setting was not respected by WU.

@unclewebb The T470P also acting differently regarding c states when on battery, plugged in or in docking with 3 external monitors (max c6 in docking) TS gives C state Limit - Locked C10. It can do all package c states but c 10 are only active on battery. I will definitely try out BITS. I will also disable windows update and try drivers one by one. The problem with this approach is the time it takes to test. Sometimes on battery it takes a couple of hours before it loses the package c states.

 

hi
is it possible to change limit of core c-states on the fly?
thank you!

sadly windows power setting doenst seem to work
Power Setting GUID: 9943e905-9a30-4ec1-9b99-44dd3b76f7a2 (Processor idle state maximum)