The ThrottleStop Guide

Intel realized that when a multi core CPU is lightly loaded, it can run a little faster, reliably, without overheating. That's what Turbo Boost does. It varies the speed of the CPU based mostly on how many cores are active and how much power the CPU is consuming. The Core i7-4700MQ has a default speed of 2400 MHz. When a single core is active and the CPU is operating at less than the turbo boost power limit, the multiplier will increase and the CPU will run at a maximum speed of 3400 MHz.

I believe the 4700MQ also has another feature built in that lets you overclock these CPUs another +2 bins of Turbo Boost as Intel likes to call it. This feature might need support in the bios to access it and I think laptop manufacturers have the option to disable this feature in the bios. That would bring the maximum single core speed up to 3600 MHz instead of 3400 MHz. I think the 4800MQ allows +4 bins of additional turbo boost and the 4900MQ has +6 bins of additional turbo boost available.

If this feature is supported, I recommend using the Intel XTU program. The guys at Intel have access to the full documentation, a large budget and likely a team of programmers so are able to go well beyond what a freeware program like ThrotlleStop can do.

A computer with Windows on it will typically have 500 to 1000 threads running in the background even when sitting idle at the desktop. A single threaded game does not simply grab one core and stick with that core for the entire time. All games are broken up into multiple threads. Each thread has to get in line with the other 1000 threads running on your system and when it reaches the top of the list, each gaming thread will get dispatched to whatever core is available. After 15 ms, it will get bumped off the CPU and will have to get back in line for processing to resume. While your game is running, there are going to be moments in time when 1, 2, 3 or all 4 cores are active so the maximum multiplier and speed of your CPU will be constantly varying. That's how a modern Intel CPU works. Tasks are being schedule so rapidly within the CPU that end users don't notice this constant changing in performance. ThrottleStop is a good monitoring tool and can provide you with a very accurate average speed while this is going on.

ThrottleStop can not be used to force a CPU to 100%. On many laptops, it is not necessary at all unless your laptop has some built in throttling problems. Beyond monitoring, ThrottleStop is not going to be able to do much of anything. It can be used to lower the speed of your CPU if you are having overheating problems but I don't believe it will be capable of increasing the performance of your 4700MQ. Hopefully the next version of ThrottleStop with support for the new Haswell CPUs will be generally available in the near future.

 

Thanks for the explanation. Ive got the XTU program now, set it to run at cache x36....seems stable so far, no issue with overheating at all. Comfortable 50 degrees or so under load. But it doesnt seem to run at the highest speed all the time...im guessing thats because the load is spread out over several cores....

Where can we check for the latest version of throttlestop? I didnt see a download link in the OP.

 

Hi, guys. Sorry for my English, it is not my native language. I have Dell Inspirion 7720 with i7-3630QM. The average temperature in idle 58-60C. Most of the time the fun runs. Idle clock - 1.2 GHz, idle voltage - 0.8V. What can I specifically do with ThrottleStop, to reduce idle temperature. I like silence

 

If you have a Haswell CPU or a 3rd Gen UM CPU, send me a PM. It's mostly done but I would rather not post a link until I get some more feedback.

memteh: There probably is not much ThrottleStop can do for you. 3rd Gen CPUs like your i7-3630QM are very efficient when idle. If you don't have too much background junk running on your system, the individual cores should be spending the vast majority of their idle time in the low power C6 state where power consumption drops down close to zero. You can use ThrottleStop to insure that is happening.

It's hard to improve on what Intel has accomplished. ThrottleStop is more to stop throttling issues when laptop manufacturers drop the ball and try to cover up poorly designed cooling solutions by reducing the speed of the CPU to a crawl.

 

unclewebb,
I am new to the forum and could not find the way to send private messages.
I have a Lenovo y510p with i7-4700mq(checked with device manager and BIOS). I am getting "CPU not supported" message during the installation of Throttlestop. This cancels the installation.
I am running windows 8 pro.
I am keen to hear your input on the matter.
Cheers

 

My first post asked all the wrong questions, so hopefully this editted version will do a better job!

Despite your really thorough guide, I'm failing to get my tiny mind around how I need to set up ThrottleStop. What I want to be able to do is set an undervolt for each of the various P-States, to reduce the heat output of my laptop (already done some hardware mods, but it needs more).

I realise in TS I can create various profiles with different Clock, Mod, and VID details, but is there any way to keep the various existing P-States (around 10) and set new voltages for them? From previous experience, I can get away with about 3 voltage steps to enable the 10 or so clock/mod steps.

Thanks!

 

I answered your question as best as I could back in 2011 and not much has changed since then.

http://forum.notebookreview.com/har...531329-throttlestop-guide-46.html#post7344229

ThrottleStop does not let you set different voltages for each individual P-State. This might have been a useful feature for the original 65nm mobile Core 2 CPUs but it has not really been necessary since then. The 45nm mobile Core 2 CPUs and all Core i CPUs should be spending their idle time in one of the low power C States like C3 or a deeper C State if supported. When a core is not in one of these C States, it should be running at the highest multiplier where it is most efficient. Some smart guys at Berkeley debunked the myth that running a CPU slow is a good idea.

Power Optimization – a Reality Check
http://www.cs.berkeley.edu/~krioukov/realityCheck.pdf

The first, 2nd and 3rd Generation Core i CPUs removed the adjustable voltage register so there is no software available to control the core voltage. Desktop boards let you control the on board voltage regulator so you can increase or decrease the CPU core voltage but this software is motherboard specific and I don't know of any Core i laptop motherboards that let you decrease the voltage. Adjustable voltage has returned for the new 4th Generation Haswell CPUs but without access to a mobile Haswell CPU or documentation from Intel, I don't plan to add that feature to ThrottleStop.

If you need adjustable voltage for each individual P-State in your Core 2 CPU then you will have to use RM Clock.

 

Thanks Kevin, just wanted to make sure I wasn't two years out of date! Appreciate the quick reply .

 

Hey guys, could anybody run Throttlestop on Haswell? I have an i7-4700mq and in the beginning of the installation I am getting the message "CPU not supported".

 

Dimov: I have a beta version of ThrottleStop available that supports Haswell but I am not going to post the download link until it is finished. You have not made enough posts yet at NBR so your mailbox is disabled which means I can not send you the link. If you have an older CPU that ThrottleStop works on, run it, find my email address in the About... box and send me an email. I wish life was easier for you but NBR does not allow me to post an email address. That keeps the spam bots away so I don't mind that rule.

T2050 seems to like the new version.

Hopefully I have some free time available this week to get it finished so I can post a link finally.

 

Hi!
I have Lenovo U400, with Core i5-2450M CPU @ 2.50GHz (turboboost up to 3ghz i think), 4gb ram, Radeon 6400M series 1gb ddr3

trying to play World of Warcraft, and have big fps drops in heavy situations, from 40-60 to 10-15.
used CPUZ to monitor cpu, and here we go - it is throttling from 3000mhz to 700 mhz!

Then used ThrottleStop, settings like these:


i've got CPUZ info log and ThrottleStop log too!
The strange thing, CPU did not stop to throttle, but CMod and Chip % are all 100% in log! But why it drops cpu Mhz?
As i see, the drop happens then GPU temperature get's to 99 degrees!

So... Radeon GPU throttles CPU?

ThrottleStop LOG: DATE TIME MULTI C0% CKMOD CHIPM BAT_mW TEMP GPU VID P - Pastebin.com

 

Have also tryed this tip:

+ disabled C1E in ThrottleStop.

Same thing, fps drops a lot on heavy load.
Got no log, becouse ThrottleStop stopped logging then i cut log file to desktop, no new file created and no log (((

pps - Another try, with EIST disabled this time. Same !@#$ ((( got log this time:
http://pastebin.com/ZMuVY6pB

 

It is very common for laptops to throttle the CPU when the GPU gets too hot. A GPU temperature of 99C is way too hot. You have to disassemble your laptop and find a way to fix that so your GPU runs cooler. After you fix your cooling problem, disable BD PROCHOT and then maybe your CPU will continue to run at its rated speed.

If you disable BD PROCHOT now, your GPU will probably get hotter and hotter. If you get lucky, your laptop will shut down. If you are not lucky, you will burn out your GPU which wouldn't be a good thing so fix your cooling problems first.

The regedit mod is not a good thing to do to most laptops. It disables the low power C States so your laptop will consume more power and it will run much hotter. Most users do not want that so avoid this. EIST also needs to be enabled when using ThrottleStop. People that recommend disabling EIST don't understand that most mobile CPUs do not work the same as the desktop K series CPUs.

 

unclewebb thanks for answer!
Yeah, i am trying to get everythink cool, but Lenovo u400 cs is way to poor and small, with aluminium plate over GPU and with bad screws pressure to CPU\GPU i think. Got it repasted 3 times past week, all same result =\
Got some photos btw:


If i disable BD PROCHOT, it will stop throttling CPU then GPU get's to 100 degrees? Really? I will try it a little bit with accuracy, will see if GPU get's hotter than, 110 degrees for example. Not too bad maybe.

About regedit mod... well, it says that it disable CPU power saving C states, so it won't let it run turboboost, same as it won't let it run lower that stock speed. That would be good. But even with this mod, CPU is throttling then GPU get's to 100 degrees
About EIST... i dunno even what is this ))) will not disable it then, if you say.

Again thanks for answer, looking forward for your advice!!!

 

Ooookay!
I've got Arctic MX-4 from store today, got full complect of special pastes to polish heatsink which takes hot from cpu\gpu. And amount of screws and other stuff to make heatsink pressure to cpu\gpu better!
Starting quest now, will post with pics and result a bit later today!

ps - also! to try OFF BD PHOCHOT function in Throttlestop. It should really turn off throttling then gpu reaches 100 degreees...
And it.. DOES! GPU gets to 100... 101... and cpu at full speed!
BUT... after 5 seconds of gpu at 100 degrees and notebook turned off by itself. D@mn guard system =\

pps - sorry for offtopic about cooling system of my U400, anyway if nothing will get good... i still need solution to turn off notebook guard from turning off at 100+ degrees...

 

You can use ThrottleStop to disable Turbo Boost. Doing that is OK. You can also use ThrottleStop to reduce the CPU multiplier so your CPU runs slower to reduce the amount of heat in your system. That is OK too.

Disabling your low power C States with a regedit mod to disable Turbo Boost is a bad idea. That creates more heat. You want less heat in your system, not more heat.

Many experts in many forums tell users to turn this off but most of the experts don't fully understand EIST. I have seen many forum discussions and I have found that you can fully control your CPU without having to turn EIST off so you might as well leave it on, especially if you are trying to use ThrottleStop to control your CPU.

You know what the real problem is. The engineers that designed your GPU heatsink are idiots. It was probably the accountants that forced the engineers to save a few dollars by designing a poor heatsink like that so I guess that makes them the idiots. When something is so poorly designed, there is not much you can do. If there is not enough copper in the heatsink and if the heatsink is not making firm contact with the GPU then cooling will not be able to keep up. Your GPU will sooner or later overheat and your laptop will run like crap. I would return a laptop like this to the store immediately for a refund. If you can't do that then I would sell it on EBay and take a loss. It might be OK to surf the internet with and that might make someone happy if they get a good deal but for gaming or when using any application that uses the GPU, you are going to always have a problem with it overheating.

You might be able to attach some small stick on copper heatsinks to your present heatsink. Some users have had some success doing that.

Heat protection is built into the CPU and GPU so they automatically shut themselves off if they get too hot. There is no way to disable this protection.

Head back to the U400 forum. Maybe someone there has come up with a cooling mod for this laptop model.

 

Very informative, nice.

 

Well, spent 9 hours upgrading U400 cooling system. I WIN. It's 87*\80* cpu\gpu under load now with turboboos and all stuff ! No need to turn off throttling now.
To avoid offtopic, posting link to my thread in Lenovo forums. Big post with all i have done with pics and results.
Thanks for advices unclewebb !!!

http://forums.lenovo.com/t5/IdeaPad...ing-and-GPU-throttling-CPU/m-p/1205388#M96053

 

So far so good with the Version 6 Beta Test, nothing out of the ordinary until I realized that I my clock rates did not change when changing Window's Power Plans (Was testing battery life and noticed that I was stuck at turbo frequencies since task manager showed that it didn't drop to 800mhz when I went to battery saving mode).
I then realized that I had unchecked EIST, and upon putting it back on, the CPU will stop being locked to a clock rate when changing plans. So I also advise that EIST needs to be on at all times.

 

That's why I included this in the first post of the ThrottleStop Guide.

The other thing to keep in mind is that ThrottleStop should only be used with the Windows High Performance power profile. If you use Balanced then you end up with ThrottleStop and Windows both writing different information to the same CPU control registers trying to control your CPU. The result will be unpredictable.

Thanks fort the feedback for ThrottleStop 6.00. I haven't had time to work on it lately so for now, I will just post a link to the beta in my signature so other users can give it a try.

 

Only with the High Performance profile? Or do you mean just simply avoid Balanced which means that the Power Saver profile would work as well?
Asus leaves their own high power & battery saving profile (been using both of them and the clock rates seem to be working just fine and stable)

 

ThrottleStop should only be used with the Windows High Performance power profile. The Minimum and Maximum processor state both need to be at 100% or you can run into the situation where Windows and ThrottleStop will both fight over control of your CPU.

I disabled and removed the Asus power stuff on my laptop. As long as the C States are enabled and working correctly, I find that a lot of the other power management stuff is not necessary. Everyone believes that slowing down a CPU saves power but some guys at Berkeley don't agree.

https://www2.eecs.berkeley.edu/Pubs/TechRpts/2009/EECS-2009-140.pdf

A fast CPU gets tasks done quickly and will spend more time in the low power C States like C6 and C7 where power consumption is reduced to nearly zero.

If you are getting good results while using ThrottleStop combined with Windows or Asus power profiles then ignore my advice.

 

I guess the point being that I'm not actually using Throttlestop to change or control specific frequencies and only to prevent artificial throttling (monitoring only, or I then just exit Throttlestop - leaving the disabled BD PROCHOT for the remainder of the up time until I either Sleep or Reboot - then I just reinitialize both Throttlestop and Intel XTU the next time the PC wakes).

 

I have been trying different settings in Throttlestop and geting some nice results. I was just wondering if there is list or post where other users have posted their settings for the Clevo W110ER? Just became an owner of one and loving it so far!

 

Use ThrottleStop to enable Turbo Boost for your W110ER and you are done. I think the cooling system is adequate for this.

Here is a link. Do some Google searching if you need more info.

http://forum.notebookreview.com/sag...se-throttlestop-but-cant-find-link-guide.html

 

Thanks unclewebb for the info and the link!

 

Prema's new 1.6 BIOS or 3.0 UEFI BIOS mods (depending on if you have windows 7 or 8) will enable you to Turboboost without Throttlestop. However, TS is still dead useful when you want to manually adjust the multipliers if your system cant take the full turbo.

 

Ive got 6.00 beta with a i7-4700MQ and ive noticed some odd things.

First of all, it says CMOD and CHIP at 100% for all eight threads. However with intel XTU, it is only reporting one core active. Im running into this problem where i have XTU set to increase multipliers to 36x for 1 core, 35x for 2 cores and 34x for 3 and 4 cores. However my CPU only hits 3.39 ghz and keeps varying between 3.19 and 3.39 ghz, even though XTU keeps saying only one core is active. Its not overheating because load temps average about 60 degrees celsius.

Do you happen to know what's causing this? Is it just XTU bein wrong?

Also i cannot change CMOD or chip, when i tick the check boxes, the grayed out 100% areas are still grayed out. I can change the multipliers in throttle stop, but that does not seem to do anything.

 

Question2: Have you used ThrottleStop before on previous generation processors? Do you know what CMOD and CHIP are all about and do you know that they are supposed to always be showing 100% on the right side of ThrottleStop in the monitoring area? Before trying to adjust these on the left side of ThrottleStop did you click on the Turn On button at the bottom right?

What are you trying to accomplish with ThrottleStop? You have to be careful when using XTU and ThrottleStop at the same time. Both programs are accessing the exact same registers to control your CPU. The results might be unpredictable.

The number of active cores that XTU shows is misleading. In a Core i CPU, cores are becoming active and inactive thousands of times a second. As this is happening, your maximum turbo multiplier will be varying because it is limited by how many cores are in the active state. XTU showing a constant 1 or 2 cores active is grossly over simplifying what Intel Core i CPUs are doing internally.

I would suggest that you start by running XTU or ThrottleStop but don't run both at the same time. When you are running a single threaded benchmark, open up the Task Manager and you will see that Windows still has 500 to 1000 threads running in the background which will be constantly waking up additional cores, at random intervals, whenever these tasks need to be processed. The result is that during normal operations, even when idle at the desktop, these CPUs are never just sitting with 1 core active. The number of active cores is constantly varying. ThrottleStop reports an extremely accurate average multiplier when this is happening using high performance timers within the CPU that Intel included specifically for this purpose.

Run a single thread of the built in TS Bench. Take a screen shot half way through this test while the CPU is loaded so I can see what multipliers your CPU reports. You should see a very high multiplier during this test but you will never see the full 1 core turbo multiplier that your CPU is rated at because of the background processes that are constantly waking up additional cores. The only possible way to see the full 1 core turbo multiplier would be if you went into the bios and disabled 3 of your 4 cores. This would insure that only 1 of your 4 cores would be active. If you do that, ThrottleStop should report your full 1 core turbo multiplier when it is fully loaded. Great for testing purposes but obviously not a practical way to run a Quad core processor.

ThrottleStop is a useful too if your CPU has a throttling problem but it can not be used to make your CPU do something that Intel did not design your CPU to do. Your varying multiplier sounds like your CPU is running as Intel intended it to run. Post some screen shots if you have questions. That makes it a lot easier for me to see how you have ThrottleStop set up.

 

I found that my processor frequency keeps varying even though min processor state is set to 100%.

It was suggested in this thread ( http://forum.notebookreview.com/sag...es-my-processor-frequency-keep-varying-2.html) that i use throttle stop to bypass the power saving of the CPU somehow.

 

Intel designed these CPUs so the speed is constantly varying depending on how many cores are active. That logic is built into the CPU and with a 4700MQ, you can not change this.

You can disable all of the low power C States (C1/C3/C6/C7) and if you have an Extreme mobile CPU, you can lock it to a fixed speed. If you try to do this trick on your CPU, first of all, it will run extremely hot when idle and second of all, disabling the C States will also disable the Intel Turbo Boost feature so your CPU will run both hotter at idle and slower. There is no reason anyone would want to do this to a laptop. A 4700MQ will only run at a maximum speed of 2400 MHz if you disable the C States.

You have a mobile CPU. They do not operate the same as an unlocked K series desktop CPU and your CPU is not the same as an Extreme mobile CPU. With a desktop K series CPU you can go into the bios, disable the C States and set the Turbo Boost multiplier to whatever value you want. You can not do the same thing with your mobile CPU.

 

Im confused, lets say i have it OCed in XTU. With 4 cores active my CPU should be running at 3.4 ghz under load with 4 cores active.

But i see that it keeps fluctuating between 3.19 and 3.39 ghz. You mean to say that this is supposed to happen?

 

Hello
Just to make it clear - The Minimum and Maximum processor state both need to be at 100% - this is the one condition? Other plan settings are unimportant and it hasn't to be necessarily windows profile named High Performance - right?
I have T5800 Merom 65nm and use TStop v. 5 - will TS v. 6 be better or it doesn't matter in this case?
I've been using TS for couple months and of course it lower temps when CPU is working hard but at normal work laptop is cooling down little faster without TS but reaches higher temps.
My settings, Power Saver 75%


I think those are most power saving settings with good performance - am I right?

 

Yes, ThrottleStop only works correcty when Minimum and Maximum processor state are set to 100%.

ThrottleStop 6.00 supports Intel's latest 4th Generation Core i Haswell CPUs. TS 6.00 also has some interesting features for the 3rd and 4th Gen CPUs. TS 6.00 should work OK on the older Core 2 based CPUs but there is probably no advantage. Use whatever version works best for you.

Your screen shot shows that ThrottleStop is in Monitoring Only mode. You have to click on the Turn On button so ThrottleStop can control your CPU. Have you tried adjusting CPU VID voltage lower when fully loaded? Adjusting the voltage is the best way to reduce temperatures on the first generation Core 2 mobile CPUs.

Laptop fan speeds can vary. This can make it difficult to compare temperatures between 2 different settings.

You might also want to try the RM Clock program. It has some more features and control for the first gen Core 2 mobile CPUs and was very popular for these early CPUs.

 

I posted this over on the Tablet forums. It explains some of the new features and the control available on the UM CPUs when using ThrottleStop 6.00.

The Intel Power Balance feature lets you decide whether the Intel CPU or Intel GPU should get the biggest share of the TDP budget. Each value can be adjusted from 0 to 31.

CPU 0 - GPU 31
http://img809.imageshack.us/img809/1026/hyck.png

CPU 31 - GPU 0
http://img189.imageshack.us/img189/5348/mh9d.png

You get a lot higher Intel GPU speed when the GPU is favored and you get a lot more CPU turbo boost when the CPU gets favored in the Intel Power Balance.

Level 0
http://img843.imageshack.us/img843/29/v4ph.png

Level 1
http://img853.imageshack.us/img853/6664/cl0d.png


In the UM processors, the TDP Level control also controls what the default multiplier is. In Level 2, this CPU uses a default multiplier of 24 so when turbo boost is disabled, the CPU runs with the 24 multi. Level 0 uses a default multiplier of 19. In Level 1, the default multiplier is only 8. If turbo boost is disabled the CPU won't be going any higher than 798.2 MHz ( 8.0 x 99.77 MHz )

I finally have a much better understanding of these UM CPUs. The level control gives manufacturers full control over these CPUs so depending on the manufacturer and the application, they might end up running at far below their Intel rated CPU speed and also running at far below the Intel rated TDP when they are stuck in one of these low power levels. These CPUs are almost like 3 unique CPUs in 1 depending on the TDP Level setting.

I hope that ThrottleStop 6.00 can finally give users some control over these UM CPUs in their tablets and notebooks. This feature works great on my Asus laptop but it still might need some tweaking on various tablets so user feedback is important.

 

Hello
Thanx for reply. Yes, i taked the screenshot in monitoring mode, but I ensure you I've tested TS turned on. How did you notice that? FID?
Voltage I've set is the lowest stabile.
My english is not so good - I am sorry, but what I am trying to understand is:
Is TS can control processor saving energy in the same way that processor can do it by itself ?
So when I enable PowerSaver, C states and SLFM6 and of course turn on TS - is it eqaul to not using TS and minimum processor state in windows power plan (e.g. balanced) is set to 5% ?
My impression is that CPU can save energy by itself little beter than TS but the biggest befit of using TS is - as it can lower VID - can lower temperatures.
Regards

 

kukam-ga: I have not done any testing on a 65nm Core 2 mobile CPU like you have so I don't know what works best.

To test, I switch to battery power and then I use the built in Windows Performance Monitor and I watch the battery discharge rate.

http://img838.imageshack.us/img838/12/hruq.png

Does SLFM6 work on your CPU?

You are correct. The only advantage of ThrottleStop on your CPU is because it lets you lower the VID voltage. If your CPU is completely idle, running ThrottleStop to control your CPU might use more power compared to the Windows profile with minimum processor state set to 5%.

 

I guess it does. SLFM6 gives 600 MHz clock, SLFM can't get lower than 800

Understood. If you haven't write it somewhere in this thread I would very gladly read why? I guess is it too sophisticated to control processor or program TS by itself consumes some CPU cycles.

 

SLFM6 is working correctly. It makes your CPU run slower but without testing this, I don't know if it saves any power during normal use.

ThrottleStop was mostly designed to stop CPU throttling when the CPU is loaded while gaming. It is a very efficient program but all programs have to consume some CPU cycles. With the Windows profile at 5%, the CPU should use the lowest possible VID and lowest MHz so it is probably impossible for ThrottleStop to improve on this. Only when there is a load on the CPU and you use ThrottleStop to lower the VID, then it can save power.

I don't like or use the Power Saver feature. A CPU will go from idle to full speed quicker when not using Power Saver. On the 65nm first generation Core 2 mobile CPUs like you have, Power Saver might be useful but I didn't do any testing of this. I did not spend a lot of time developing this feature because it does not seem necessary on the 2nd Generation 45nm Core 2 CPUs and I don't think Power Saver is necessary on any of the newer Core i CPUs.

It's not a horrible feature but I prefer to let the CPU manage itself.

 

Hello. Now I am confused about what you wrote because when I turn Power Saver off, my CPU clock is never idle, is at full speed all the time and doesn't slow down - 10x200MHz Is that supose to be like that?
My CPU behave like that:
turning on PS is like telling to CPU - go to lower states to save energy, turning off - don't go.
When TS is turned off and min CPU state in power plan is set to 100% my clock mulitiplier is all time between 8-10.
I hope I dont't bother you too much - I am just concerned.

 

Sorry for the confusion. Core i CPUs and the 45nm Core 2 Duo CPUs use low power C States like C3, C4, C6 or C7 when a CPU core is idle. If you have a CPU that uses these low power C States, the reported multiplier and VID voltage is not important when idle because the CPU will drop down to a much lower power state automatically. For these newer CPUs, there is very little or no benefit to using the Power Saver feature. The CPU will manage itself very well without using ThrottleStop - Power Saver feature. These CPUs save power automatically.

I think your T5800 has available C1, C2, C3 and C4 but these low power C States are only available if your motherboard bios enables them. If your computer uses C4 when it is idle, the ThrottleStop - Power Saver feature might not save you very much power. Power Saver can lower your MHz and lower your VID voltage but when a CPU is in C4, it will automatically be using a much lower VID so the ThrottleStop VID is not important. In C4, it is already lower than this. If your laptop turns off C2, C3 and C4 and only uses the C1 low power C State then using ThrottleStop - Power Saver will give a big power savings when idle.

You have to do your own testing of this or send me your laptop and I will test this for you but if I like your laptop then maybe I will keep it.

Use this Windows tool to test your laptop. It will tell you which ThrottleStop setting works best at idle.

http://img838.imageshack.us/img838/12/hruq.png

 

Dear unclewebb,

Just tested the 6.00 beta on Xeon 2697 v2 config, and it works flawlessly. Thanks for supporting IvyTown CPUs as well!

 

Until recently I've owned alienware laptops all with XM processors. It was my understanding the extreme i7s came overclockable by design, and with the AWs, I never had a problem increasing the CPU multipliers with Throttlestop. However, I just purchased a Precision M4700 with the 3940xm i7 CPU, and the multipliers FID scores stay pegged at 37 no matter what I do (and I think turbo is 38). The CMOD and Chip never move from 100%. Everything looks good but I can't turn up the FID at all. Does anyone know why this is, can the M4700 be OC'd? I checked and their "help me choose" info when you configure a system says the extreme cpu is overclockable, but it also said it has 6 cores..... If somehow Dell disabled the ability to use all of the XM's ability then I'm pretty p*ssed with Dell right now. I would return it but it's still a decent machine and I got a crazy deal. Hopefully someone here can give me good news and tell me there's some setting I can change!

Thanks in advance

 

For me Throttlestop never worked for overclocking with Ivy Bridge. Only through BIOS. But you can try Intel XTU.

 

Is there a hope that XTU will work on a 3840QM without using a modded/unlocked BIOS?

 

It all depends on BIOS and ME. For rare laptops all you need is just to install XTU (somewhere you need to find the proper program version which is te only which works with that notebook).
Many other need to mod ME firmware and then flash it. Read more here. There are written a lot but it is very simple in the end.
But some laptops (even if you have modded ME) will still not support XTU. Like mine Such a BIOS as Prema told me (I guess it was him). SO I had to unlock it. AMI BIOSes / APTIO are very easy to unlock.

 

Can anyone help me with setting up TS on my notebook? For some reason I can control the multipliers, but it refuses to accept the 11x multiplier even when set to it. I've used TS on my vostro for a long time, sadly I cannot get my P9700 oc'd to 2.9GHz.

 

The P9700 has a default multiplier of 10.5 and uses a bus speed of about 266 MHz so Intel rates it to run at 2.8 GHz.

ARK | Intel® Core

The 11.0 multiplier is called the Intel Dynamic Acceleration (IDA) multiplier. The way Intel designed this feature to work is that when 1 core is in one of the low power C States, the other core can switch to the higher 11 multiplier so it can process single threaded activities a little quicker. By default, when both cores are active, the maximum multiplier will automatically drop back down to the default 10.5 multiplier. This is normal. You can run a single thread of the TS Bench to test this. If your multiplier is greater than 10.5 then it is working correctly. It won't hit the full 11.0 during this test because there is always Windows background activity waking up the second core which momentarily reduces the multiplier back to 10.5 while testing.

A smart user named somebody discovered a trick where you can lock both cores to the same IDA multiplier. I nick named this trick Dual IDA and ThrottleStop will allow you to access this feature but this is only possible if EIST is unlocked in ThrottleStop.

Many Dell laptops let you disable EIST - SpeedStep in the bios so you can boot up, use this trick, and lock both cores to 11.0. Most other laptops do not give you the option to disable EIST in the bios so you can not access the Dual IDA feature. Another smart guy named Nando assembled a list of modified bios versions to unlock EIST for many more laptops so they too can access Dual IDA. There is lots of information about this here.

http://forum.notebookreview.com/win...c-acceleration-ida-both-cores-core-2-duo.html

The difference in performance between the 11 multiplier and the 10.5 multiplier is less than 5%. I don't think I would risk bricking my laptop with a modified bios for a small increase like that.

 

I figured you'd say something like that, but I guess if the perf increase is that small, then it's not worth the hassle at all. And I've been on this site since you first made throttlestop available to NBR years ago, it's just I don't remember my old account credentials.

 

Hi!

I have a 4702M and I would like to test a beta for you. Thanks.

-T_TDuck