The ThrottleStop Guide

Didn't we talk about this sometime before? Know what you mean, without hardware to test on it is difficult to know.

Wouldn't mind for instance testing the 32GB RAM limit nearly everyone believes exists on standard IVB /SNB / HSW. Seems limited by BIOS but without spending $1200 on 64GB of DIMM's I'm not able to confirm one way or the other. Would also be interesting to bench one of the quad HSW mobiles with 2 cores enabled and TDP limits set the same as the lower powered duals (15W) to see if the lower powered HSW's are really power efficient or not. I would not be surprised to see the quads more power efficient.

Perhaps if there were more people willing to test we would know but unfortunately there seem only a few. Those people who do I am very thankful too but the overall lack of feedback kind of puts dampers on spending time on these problems for hardware I don't personally use.

On a side note I did take a look at the iGD yesterday and it should be possible to set the higher multipliers without too much trouble although, at least on my system, they stay at what they are set rather than down clocking. If you are still interested in this I'll try to put something together but might be a while as I'm quite busy at this time.

 

I have a lenovo ThinkPad yoga with a i7-4500u and I'm happy to do some testing. Just tell me what you guys want me to do

Sent from my Nexus 5 using Tapatalk

 

i tried this prog, but i dont see any settings for undervolting my i5-4200 ?
i tried to install xtu, but it doesnt somehow run on my modded win7 64..

 

Dufus - I finally tried testing my FED15F50 theory on my daughter's Asus laptop with a 3rd Gen CPU and for some reason, RW Everything would start up fine but it would instantly crash and bluescreen as soon as I clicked on the memory icon. If you have any new iGPU tricks, send them my way. It sometimes takes me a while to get around to figuring things out but I always appreciate any hints that come my way.

lazat - Your offer to help is most appreciated. Intel CPUs are in a wide variety of devices, all with unique features and problems so it is impossible for Dufus or I to buy one of each. I hope to have some more time for this project next month. When I need something 4th Gen U related to be tested, I will send you a message.

schmendrik - Were you using ThrottleStop 7.00? That's the version that has the 4th Gen voltage adjustment feature. When asking questions or giving feedback, it helps a lot if you post some pictures so I can have a look. Seeing ThrottleStop in the wild is the best way for me to learn more about how it works on a variety of devices.

Atom Ant - Your screenshot shows that you have EIST disabled. On some CPUs, that has to be enabled so the Set Multiplier feature works correctly.

 

thanks, thought the one at techpowerup was the latest.

 

Dear Unclewebb,

I think I love you.....

I have been working with some really helpful advice on the Clevo p-150hm lounge to try and fix a problem. Initially this manifested with really low fps when gaming. After much diagnostics and head-scratching it appeared to me that my 17 2860QM CPU was not waking itself from idle (speed of 790Mhz) yet the system was stable and all threads looked healthy. It passes PassMark but with a very low CPU score and failed the intel CPU diagnostic's frequency test.

I then installed and played around with ThrottleStop. As predeicted all 8 threads were still functioning fine but the CPU was remaiing at 790Mhz regardless of load. I then unckecked (turned off) the BD PROCHOT button.

All of a sudden we had CPU activity on all threads. Frequency was, with no load, still staying at 790MHz but jumping up a little now and then. Things seemed to have woken up. So I ran PassMark and the CPU score jumped to to 7500 for CPU (as opposed to previous 2000). Also, Clock Speed during the test raised up to 2.5 GHz. The I ran intel CPU diagnostics and instead of getting a 'Frequency Fail' I got a pass. Then logged into SWTOR (the original problem) only to find it running smooth and stable in hoh-pop zones on 'Very High' setting at around 40-60 fps. No real heat issues (75-80 degrees on CPU).

I have no idea why this worked other than at some stage it appears that PROCTHOT had locked the CPU into an idle frequency of 790 MHz from which it would not arouse itself! I'm thrilled with the result but will run the laptop in a cooling rack with the battery out for a while until I am happy there are no temperature issues.

I would not have followed this idea up but for the suggestions on this forum. Huge thanks all. I hope this helps anyone else out there with a similar problem

 

Don't tell my wife!

BD PROCHOT is a problem for a lot of laptops and I think ThrottleStop is still the only program that lets you adjust this.

The BD stands for bidirectional. This allows other sensors on your motherboard or your GPU to signal the CPU. This tricks the CPU into thinking it is too hot so the CPU responds by using the minimum multiplier which for you is 8 so your laptop gets stuck indefinitely at a hair under 800 MHz. Disabling BD PROCHOT tells the CPU to ignore these outside signals. That should allow the CPU to run at its full rated speed. Your new benchmark numbers seem to confirm that. Disabling BD PROCHOT will NOT prevent your CPU from throttling if it ever gets too hot and needs to throttle.

About 99% of the time, a bad sensor somewhere is to blame. To troubleshoot you would need to start replacing parts like the GPU if it is separate but usually you need to replace the entire motherboard. Much easier to just disable BD PROCHOT using ThrottleStop. After you disable this, you can usually exit ThrottleStop until the next time you boot up and it will remain disabled. After using Hibernate or Stand By mode, you might need to start ThrottleStop again to disable BD PROCHOT.

I am happy to hear that your laptop is back up to speed. Positive feedback like this keeps me motivated to continue working on this project.

 

Yes, with EIST enabled 2.7GHz turbo working for one core, maybe for longer time (I think). It is not easy to tell, because Throttlestop showing four cores changing frequency between 2.4-2.7GHz, CPU-z monitor only one core at 2.4GHz. However in one thread Chinabench benchmark I definitely have higher score, than all locked to 2.4GHz. By the way, I still do not know what is ppo current limit setting?

It is a very useful program, especially for ULV 4th gen Intel CPUs, many thanks to make it! Hope it will get updates, for example the profiles could work better, it does not remember for all my saved settings.

 

CPU-Z rounds off the MHz data it shows you so it is easier on the eyes. On the other hand, ThrottleStop tells it like it is. I want to know exactly what the CPU is doing. With turbo throttling and the number of active cores constantly changing, the amount of turbo boost and actual multiplier can be very dynamic. ThrottleStop uses high performance timers within the CPU and a monitoring method recommended by Intel to show users exactly what their CPU is doing. Your benchmarks confirm that ThrottleStop is accurately reporting the speed your CPU is running at.

PP0 and PP1 stands for the Primary Plane. 0 is the current limit for the CPU cores and 1 is the limit for the Intel GPU. On most motherboards, this value is set high enough in the bios so it is not a limiting factor. I think it was the Alienware 18 that originally had the current limit set too low in the bios and it was also locked. Big problem. When overclocking the 4930MX, users were hitting the wall. Turbo boost was being limited so the CPU would throttle back the amount of turbo boost when fully loaded. It took a lot of complaining but I think Dell finally released an updated bios with a more realistic current limit.

If something in ThrottleStop is not working correctly, I need some detailed feedback so I can try to recreate the problem. If the ThrottleStop folder gets moved around, Windows can disable Write access to the ThrottleStop.INI configuration file. When this happens, your settings will not be saved or restored correctly next time you run ThrottleStop. If you move the ThrottleStop folder, right click on the ThrottleStop.INI configuration file and make sure you still have Read and Write access to that file.

It is possible that some of the ULV settings might not be saved correctly. I thought they were but without access to some 4th gen ULV hardware, it is possible that something was not thoroughly tested enough. This project depends on user feedback so take the time to let me know exactly what doesn't work and I will take the time to try and fix it. I don't like using inconsistent / buggy software anymore than anyone else does. I use ThrottleStop but usually only a few of its many features so help me out when you spot a problem.

 

That is actually good if I do not need to worry about pp0 settings!

So, the two of my main profile called battery saver and maximum performance. At the main page the settings are saved well, but under TPL menu -->TDP level control the settings are not saved into profiles. I use 1 for battery saver, 2 for maximum performance. It would be nice when I switch to battery saver from maximum performance the TDP Level control would also change from 2 to 1 automatically. Similar problem under TRL menu where the Overclock stays selected for every profile, even was selected only for one.

 

When I'm undervolting, I've noticed that even after running the XTU's stress test for 1 hour, sometimes when I click to stop the stress test, the laptop crashes.

 

I have experienced the same thing. I have instability when going from full/partial load to idle when I have underclocked farther than I should.

I think this is fairly common.

 

My laptop usually passes the XTU stress test with no dramas, the issue is I get crashes on boot just past the BIOS splash screen.

 

I ran Prime95 for 13 hours on -84.961 mV, and when I ran Intel's driver update utility through their website, BSOD occurs.

Dropping down to -83.98 mV allowed me to use the driver update utility. Hm...

 

EDIT: Nevermind, this post should've belonged in a new thread

 

Hi unclewebb

I have a new Dell E6440 laptop with 16Gb of memory, dedicated Radeon 2GB graphics, Samsung 840 PRO SSD and a i7-4810MQ processor. When I replaced the processor I cleaned the heat sinks and used MX-4 thermal paste before re-assembly.

I'm currently using version 6 of ThrottleStop - see screenshot...



My question is what version of ThrottleStop should I be using 6 or 7? Also, how do I go about setting a negative offset value to bring the TPD down therefore allowing higher multipliers to work (I can see this option in v7 but not in V6)?

Any advice on the best settings to be used would be very welcome

Thanks

James

 

OK, after some reading and help from nando4, I'm using version 7 and have set the offset to -80mV and things appear to be running OK with a multiplier of 32 - does this sound correct (temp at idle is between 44 and 48 degrees)?

Thanks

James

 

James - Are you the same planetburns that posted this on the Tech | Inferno forum?

I do not think the problem is ThrottleStop 7. The problem is that you were trying to use a -130 mV offset. Even if you are 100% stable during a stress test, you can lose stability when lightly loaded if you are trying to use too big of an offset.

ThrottleStop 6 does not have this voltage adjustment feature so if you want to play with this, you need to use ThrottleStop 7 or Intel XTU. With my 4700MQ, the maximum safe offset I can use that is 100% stable when lightly loaded is only about -40 mV. Even if I was full load stable at -75 mV or -100 mV, I could not use these settings because of the light load instability this offset would cause.

The higher overclock multipliers that the 4810MQ can access are mostly for marketing purposes. Both the 4810MQ and 4700MQ have the same 47 Watt TDP limit so long term full load performance is going to be throttled back to a similar level for both of these.

I am sure your CPU is 100% stable with a 0 mV offset so start lowering your offset until you are 100% stable at full load as well as when you are lightly loaded.

Atom Ant - That is not a broken feature, that's a feature that does not yet exist in ThrottleStop. Maybe someday.

I have been using a Dell Inspiron with a N2830 Bay Trail CPU recently. Bay Trail support is definitely not working correctly in ThrottleStop. I have never had my hands on one of these CPUs until yesterday so ThrottleStop is going to need a few tweaks to support these. There is not much you can do with a 7.5 Watt CPU but I will see what I can do.

 

I have been doing okay with 80-100mV undervolt on my 4800MQ, with XTU but it's not sticking, so I will give throttlestop 7 a try and report back.

 

It was me that was being unstable not your great software I am the same planetburns that posted at Tech | Inferno forum.

I don't think I knew how to use ThrottleStop properly and was panicking a bit - sorry about that. Everybody should read your notes on page 1 of this thread - and then read it again - before using the software (not a criticism but praise).

I've been using a -84mV offset and things seem OK on power but I only got about an hour on battery (due to a BSOD) so I need to adjust that profile accordingly and will take your advice on-board and will start at 0mV and work backwards as you suggest. Should the multiplier be locked too or would you suggest to leave that as is?

Thanks

James

 

I have a zbook with raid0 3x840 Pro and 4930mx.
so far I hit 99c at 4.0ghz already for all 4 cores.
but i managed to tweak up to 4.4Ghz just for a single core load.
whats the general core voltage and offset voltage that 4930mx users are using?

i just did a quick test of -40mv undervolt and +0.1v adaptive

1 core 44
2 core 42
3 core 40
4 core 40

seems to be stable so far

 

Be interested to see what results you get.

My offset voltage on Power is -49.8047 and on Battery is -41.9922 - these seem to be working for me at the moment. I did try a 0 offset but I got a BSOD after a couple of hours.

I've not set the Multiplier and not sure if I should (I understand the correct value would be 28 + 1 = 29 if I did)?

Thanks

James

 

planetburns - The default multiplier + 1 setting you read about was only for the original first generation Core i CPUs. If you are using the Set Multiplier feature on a 4th Gen CPU, you need to adjust Set Multiplier to the maximum value after you have adjusted your Turbo Ratios in the TRL window. For maximum performance, Set Multiplier should be set to the same value as the highest value in the TRL window. On some Core i CPUs, if you are using the Windows High Performance profile, you might not need to use Set Multiplier. Some manufacturers use this register and some do not. My Lenovo Y510P uses this register to disable Turbo Boost when gaming. On my laptop, for maximum CPU performance, this needs to be checked and set to the highest value. When testing, use something simple like a single thread of the TS Bench test to get a feel for things. You can adjust various settings in ThrottleStop while this is running. That was the initial reason for adding this simple benchmark to ThrottleStop.

I do not think that you will need different offset voltage values for AC or battery power. If you dropped down to -41.9922 mV on battery because of a BSOD, you will probably need to drop down to this value on AC too. Your offset values are getting a lot more realistic and similar to what I was getting. My theory is that the instability is being caused by having the Package C States enabled. I can not disable these on my laptop so I can not test this theory. These CPUs would be a lot more manageable heat wise if you could use the maximum offset voltage without any of the light load instability issues.

You should never be seeing a BSOD when offset voltage is at zero. Something is wrong if you are. The most common problem is a memory module that is failing. Have you tried doing some Prime 95 Blend testing to give your memory a good work out? An overnight run of MemTest86+ is a good first test before warming the cores with Prime 95. Turn off as much monitoring software as possible to reduce the possibility that your BSOD is software related. RealTemp 3.70 tends to be very stable for temperature and MHz monitoring. It takes a while to learn the ropes with ThrottleStop. Good to see you didn't toss TS 7 in the bin after your first issues.

I found some documentation today that answers a lot of questions I had about the low power Silvermont / Bay Trail CPUs. In some ways, they are sort of a cross between Core 2 and Core i. With a few minor adjustments, I should be able to add full support to ThrottleStop for these. I am looking forward to getting back to development in September on this and many other new features.

 

How add ThrottleStop to autorun(windows 8)? I tried using autorun folder, registry and task scheduler.Nothing works.

 

Greetings everybody!

First of all, I'd like to say thanks to unclewebb because besides He created this (and some other) very handy tool(s), He also provides A+ technical support for the users. Keep up the good work, and thanks for all your efforts put in this project.

So I've found a very cheap Asus 14" with i5-4200H (+ GT840m + ODD for 699$ and that is with 27% TAX. Sounds like a fairytale, and it is btw) and decided to upgrade my 4 years old Acer 3820TG w\ i5-M450. Because other variants of the Asus are configured with only ULV chips, and the 4200H has a TDP rating of 47W compared to 15W ish for ULV Haswells, I was very suspicious, but since I really the extra juice, and knew that most likely I could lower the power consumption when heat / power is an issue with TS, and this doesn't work reverse, with an ULV. Most of the time I run on AC, and I have a good cooling pad so for the same price as the model /w i5-4200U, I chose the one with i5-4200H.

I just recieved the box a few hours ago, and turned out that it was a typo and the CPU is only an i5-4200U. I am so dissapointed right now I can not describe. My 4 YO i5-450m performs 10% better in my usage (consant factory turbo thanks to TS) and also stabile up until 3.1ghz with raised FSB freq.

The i5-4200U has a max turbo of 2.3Ghz for both coresand even If I could OC the max turbo ratio for 4 threads, the audio performance of the ULV Haswell could only touch my 4YO i5's stock. But setting the max ratio in TS does not have any effect, see attached screenshots. Am I missing out something? I have a very bad feeling about this feature is maybe locked on ULV chips?

I'm in a big dilemma, and maybe this is a bit OFF topic here but I'd really like to have some other peoples opinion and I know that the people here usually know their s**t well.

I prefer 14" and I'd like to have opportunity to play some not so demanding games, using an external FHD 24" 3D display. There is only this Asus available wich is in my budget. Also I can't refund my money, because the shops policy they will only replace it to another type. But If I sacrifice the dedicated 840M, and the 14" form factor, I could get a better quality 15.6" /w I5-4200M, no dGPU, and somewhat even cheaper so I could pop in some extra ram too. If I can't get the raw DAW performance of the 4200U hit the 450M-s, then I will go this road anyway, but also interested what does people of TS thread advice? Can anybody show me some TS results with the i5-4200M? I'm willing to do a detailed benchmark of anything with this CPU (laptop is Asus X450L), if anybody is interested.

 

All I've changed is the offset to -100.5859mV and it's been rock-solid so far. No instability when idle or anything.


Sent from my iPad using Tapatalk

 

I'm still trying to get used to Throttlestop's undervolting after trying out Intel's XTU.

For gaming, I want to lock the multipliers to prevent voltage fluctuations so I can achieve lower undervolt. At -87 mV, It's stable under 24 hours of Prime95, but crashes when web browsing while listening to music or coming out of standby/hibernate. The fully stable undervolt is somewhere below 78 mV, and I'm still trying to find it.

Is there a way to tie Thottlestop settings with Window's power management profiles? For example, setting the "gaming" setting to Window's "High Performance" and "Internet" setting to Window's "Balanced".


On a side note, I have noticed that the undervolt improved the Radeon 8750M's performance. Used to dip to 650 mhz while running Furmark, with the CPU undervolt, it would only dip to 775 mhz. And yet both the stock and undervolt operating temperature are the same at 76C (73C for GPU).

 

Tonus55 - To autorun ThrottleStop when Windows 8 starts, try using the Task Scheduler and follow the method outlined in the second post of this thread.

http://forum.notebookreview.com/har...es/531329-throttlestop-guide.html#post6865107

The second post needs to be updated with some new pictures but there is a download link with some pictures for Windows 8. Let me know if you are having any problems after doing this.

lakondas - On the Core i5-4200U, the 26 multiplier is only used when a single core is active. During your wPrime testing, both cores are active so the multiplier is reduced when this happens. I do not have the specs in front of me but it looks like when both cores are active, the maximum multiplier is reduced to 23. Your CPU is running very well considering that it was designed by Intel to be a low power CPU.

wPrime is only loading your CPU. With the low power U CPUs, if you fully load the Intel CPU and the Intel GPU at the same time, performance can drop significantly. Lucky you have an Nvidia GPU so for most apps, you do not have to fully load the Intel GPU. It is sad when 4 year old technology is faster than these modern low power CPUs. A 4200M should be more competitive with your old laptop.

alexhawker - Are you overclocking too? If you can overclock and run reliably with a -100 mV offset then you have an excellent CPU core. I think my 4700MQ is average at best.

Loney111111 - What I would like to develop and test is an undervolt feature that automatically disables or is significantly reduced when the CPU is lightly loaded. This might give a user the ideal compromise so you can run a big undervolt when loaded and have this automatically reduced when lightly loaded surfing the net to avoid the light load BSOD blues.

 

No, just undervolting at the moment (see screenshot). I am a little new to this, so wanted to take it one step at a time (and I hardly ever need more horsepower, except for the occasional SolidWorks rendering).



Am I correct to assume that overvolting would be accomplished by just bumping up the core voltage in the TRL window?

 

Hello unclewebb!

I just got a zenbook UX303LN with the i7-4510U cpu and I am having a small issue. Undervolting works fine which is amazing but setting the multiplier not fully functional. It works below 20 but anything above 19 it just ignores the multiplier and sets it self to full speed (30). Is this a bug or am I doing something wrong?

EDIT:
Found out why, works as intended now

 

Is there a way to lock the multipliers to prevent the clock-rate/voltage fluctuations during gaming?

I'm fairly sure a CPU operating at -87 mV at 2700 mhz is going to be as cool or cooler than one operating at -75 mV at 2400-2700 mhz.

And having a CPU at -87 mV and 800 mhz is going to consume less power than one at -75 mV.

 

Update, things still seem stable at -110.3516 mV

 

alexhawker - Yes, you can move the Offset Voltage slider in the TRL window to the right and when it shows a number greater than zero, you will be over volting your processor instead of the more typical under volting. To be honest, there are not many situations where an Intel 4th Gen CPU needs more voltage than the default Intel VID table would give it. Long term, an overclocked CPU can degrade depending on how much voltage you have been giving it. Maybe then it might need a positive voltage bump to remain 100% stable. Intel tends to build a little extra voltage into their designs just to be on the safe side. That is why enthusiasts under volt. Most CPUs do not need an extra 50 mV to 100 mV that Intel likes to give their new CPUs before shipping them.

zaczac - Good to hear you got things figured out. I gave my daughter a Zenbook last year. The only problem is that I have a hard time getting my hands on it for testing purposes. She likes it too much.

Loney111111 - Intel designed their mobile CPUs so the amount of Turbo Boost being used is constantly varying based mostly on how many cores are active. When gaming, this is constantly changing so that is why the multiplier is constantly changing which usually causes the voltage to constantly change too. On a non-Extreme Core i CPU, the only way to lock your CPU to a fixed frequency is to disable the C States which interferes with full Turbo Boost and will probably leave your laptop running far hotter than you can imagine.

Sure, this is true if your CPU is spending all of its idle time in the low power C1 state. Most mobile 4th Gen owners have the deeper C States enabled so the individual cores are spending 95% to 99% of their idle time in C7 where the average voltage going to each core approaches zero. Every time a core enters C7, it is like a little guy inside your CPU package unplugs the CPU core from the voltage rail because the core is not in use. A 10% reduction in voltage sounds significant but if that voltage difference is only being used less than 5% of the time when a core is in C0 or C1, the total difference in power consumption becomes a lot less significant. My theory is that this tiny increase in power consumption when idle is going to be easily offset if it allows you to use a much larger voltage offset when the CPU core is active. Just a theory at the moment. Hopefully I can modify ThrottleStop a little to test this out.

 

Which settings did you change to solve your issue?

 

My i7 4500U's "Processor Current Limit" is set to 32.00A in the XTU. I'm not sure if it would be safe to adjust that.

 

Instead of using the multiplier box, click the TRL button, then under Turbo Ratio Limits set the limit you want there. This work for all turbo speeds and the multiplier box works for all non turbo speeds.

 

I keep getting "Could not open WinRing0.dll" error when I try to start the program as admin. Any known fix?

 

Than please add that feature, right now I'm not really using the profiles, actually the whole program, because I'm tired every time adjust those settings. I only start the program to lock maximum CPU performance for games.

 

beta version expired.

 

What antivirus program are you using? Some security programs consider the WinRing0 library to be evil so they block it from being installed so any program like ThrottleStop that needs that to be installed will not work.

Make sure you have unzipped the ThrottleStop download into its own folder and it is somewhere on your hard drive that you have read and write access to it. You can get that error message if you try to run ThrottleStop while it and the WinRing0 files are still in the .zip file. If you are having any problems, unzipping these files to a folder on your Desktop is a good place when testing ThrottleStop out. I usually put the ThrottleStop folder in the Program Files (x86) folder.

That was originally the whole point of ThrottleStop. Just something small and simple so a person could use their laptop as Intel intended it to be used without some shady manufacturers trying to make Intel's CPUs run like slugs. I have lots of features to add but I haven't had the time to work on ThrottleStop very much lately. Maybe September.

I will try to get a new beta out in a day or two.

 

Anyone knows what the "Turbo Boost Power Time Window" does? My i7 4500U is set to 28 seconds.

 

*whew* I went to run up v7 beta just to check some settings, and got the message. Funnily enough it redirected me to http://www.thedigitalhq.com/downloads/ which doesnt work

Thanks for continuing to make releases, your efforts are greatly appreciated here!

 

I am facing throttling issues with my Samsung NP550P5C-S05IN laptop, which I am not able to fix with ThrottleStop. The laptop is equipped with Intel Core i7 3630QM @2.4 GHz (3.4 GHz Turbo) and NVIDIA GT 650M (2GB DDR3 V-RAM). While playing a game, the processor clock drops down to less than 900 MHz within 10 minutes of game play. GPU clock sometimes lowers to 810 MHz from 835 MHz and the other times it raises to 950 MHz from 835 MHz. So there doesn't seem to be a throttling issue with the GPU.

I tried disabling BD Prochot in ThrottleStop, it didn't help. I also tried setting multiplier 34Tand 24, and that didn't help either. I am using high performance plan in power options, with all the options tweaked for maximum performance. I use my laptop mainly for video playback using madVR, which uses the gpu in game mode. Within 10 minutes of playback, it starts to drop frames with CPU clock gradually dropping from about 3.3 GHz to 1.1 GHz and often below 900 MHz. Could you please help me in fixing this throttling problem?

 

Not exactly sure how your betas work. Are the just timed to expire? If that's the case how long do they last for?. Also any ETA on the next one? love the software you create !

 

Whoops, wrong thread.

Delete.

 

I noticed that the i7-4500U was affected by power/current limit throttling when it was coming out of hibernation. Could this be resolved by increasing the current limit to something beyond 32A?

 

I just remembered that I released a beta 3 version a couple of months ago for my friends at Ranch Computing. They needed a version to help out with the BD PROCHOT issues they were having on their servers. I think this version let them access the multiplier and BD PROCHOT feature on both of their 6 core CPUs and it might also work on a server with two 8 core CPUs. I do not have access to any hardware like this so any feedback is always appreciated. This version does not let you fully monitor both CPUs yet but hopefully this will be good enough until I get to work on this project again.

https://www.sendspace.com/file/oquhg3

aproc - Can you post a screen shot of how you have ThrottleStop setup? How about a ThrottleStop log file from when you are gaming so I can have a look at your CPU performance and temperatures when this throttling starts. Also turn on GPU monitoring in the Options window before you start logging data. There are some throttling issues that ThrottleStop can not do anything about. Maybe your CPU is overheating. ThrottleStop does not prevent CPUs from throttling when they are overheating.

werl - RMClock does not support any of the Core i processors. You can not under volt your first generation mobile Core i CPU with any software. You should be able to use ThrottleStop to under clock your CPU if you like.

 

Hello unclewebb,

Please see attached below a screenshot of ThrottleStop window, and a log file as well.

Thanks
Ankit

View attachment 2014-09-02.txt

 

@unclewebb
Is it possible, that you remove the "evaluation time feature" in future Versions? If so it would be possible to use an older Version of throttlestop, which probably has worked without problems for many users.

 

aproc - The default multiplier for a 3630QM is 24. If one of these CPUs is within the power and temperature limits, it should be using lots of Intel Turbo Boost so you should be seeing a multiplier in the log file up around 30 or higher. At the start of the log file it shows that the CPU core temperature is only 79C and power consumption is only 15.9 Watts so those are both fine. The C0% is showing 14.7% which means 1 active core should be enough to handle this load the majority of the time. Due to Windows background activity, there will be brief moments where a second core is needed so you will not be seeing the maximum 34 Turbo Boost multiplier but if your laptop is working correctly, the multiplier displayed by ThrottleStop should not be too far from 34.

Your CPU has the multiplier sitting at just under 24 at the start of the log file which means Turbo Boost is completely disabled. There is no logical or reasonable reason for that and it only gets worse as the log file goes on.

Have you tried checking the Set Multiplier feature and setting that to 34T? I do not think that Samsung uses this throttling method but this should be set correctly just to make sure.

Can you post a screenshot of the Turbo Power window? I just want to see how the bios has set your CPU setup. The log file looks like the Clamping bit has been set in the CPU.

The 3630QM is a 45 Watt CPU.

ARK | Intel® Core™ i7-3630QM Processor (6M Cache, up to 3.40 GHz)

There is something wrong here when the manufacturer has decided to limit it to only 16 Watts or less.

The thermal throttling temperature set by Intel for this CPU is 105C. In ThrottleStop where it says PROCHOT - 10, that means Samsung decided to set the thermal throttling temperature to only 95C instead of 105C. If your CPU hits a peak core temperature of 95C, it will throttle by rapidly cycling the multiplier between 24 and 8. You are throttling even though the temperature is nowhere near this limit yet.

Post some more info and a new log file with Set Multiplier checked and I will have another look.

nbuserms - I kind of like it when ThrottleStop expires. The amount of feedback I get is very limited. The only time I hear from users is after a beta version expires. I think beta 3 is good until 2015 so no worries for a while. I should have enough time to get version 7 finished by then.