The ThrottleStop Guide

thx for answer.

 

many thanks for your reply.

So from what I understood from what you said, my best bet is to use ThrottleStop when I do cpu intensive work or gaming and let it be in factory presets for everything else.

By "using TS" I mean WITH enabled SLFM, since in my case, only then it actually does undervolt my CPU.

Am I right?

 

Dear UncleWebb.

I have used Throttlestop on my old laptop and it worked but I am having major issues getting version 4.0 to work on my new Dell XPS502x with 2nd generation Intel i7-2640M processor 2.8 GHz with Turbo Boost 2.0 up to 3.50 GHZ.

Would you be able to give me step by step instructions of what boxes I should be checking/unchecking to maximise your program?

Really appreciate your help

 

I'm having trouble getting ThrottleStop working with my Thinkpad R61 w/ T8100. Of course the BIOS is flashed to the unofficial version to enable dual-IDA. I tried to replicate the author's settings, as indicated in the attached image.

Any ideas as to what could be wrong?

 

^ dual IDA will only engage when the CPU is slightly loaded. In your case it seems that the CPU is doing something. Let it idle and see what happens. Also check where it says Profile 1 in Options.

 

I got it working today. I'm not sure why or how, as it stopped working immediately after it first worked, then it soon started working again after I toggled on and off the same settings I'd been messing with since I installed it yesterday. In any case, now both cores will stay locked at 11.50 regardless of load while my laptop is plugged in, so I'm happy to get a little boost out of this old thing.

I ticked the 'Profile 1' option. Do you have to enable that to ensure that dual-IDA kicks on when it's plugged in?

Thanks for the help.

 

Dual IDA is only intended to be used on Profile 1 and that option will help your CPU get back into Dual IDA when you switch profiles.

Sometimes going into Dual IDA manually is easier and more reliable than the ThrottleStop built in feature. Disable C1E, set the multiplier as high as it can go, turn on ThrottleStop and manually toggle the EIST on and then off. When EIST is disabled, your CPU will either lock itself at 10.5, 11.0 or 11.5.

The less load you have on your CPU, the better chance you will have of it locking at 11.5. A lot of background tasks can prevent your T8100 from getting into Dual IDA. The picture you posted above has both cores running at 100.0% in the CO state which makes it impossible for your CPU to enter Dual IDA. One of your 2 cores has to have a chance to go into one of the deeper sleep states like C3 before the CPU can be tricked and enter Dual IDA.

Edit: If you have done a Windows registry mod to disable C3/C4/C6, that could prevent your CPU from entering Dual IDA.

Discobar: I don't own a Core i7-2640M or your laptop model so I have no idea what features are locked or unlocked by your bios. If you can not post pictures of ThrottleStop on this forum yet then send them to the email address in the About box of ThrottleStop so I can have a look. For your CPU, about the only way ThrottleStop is going to improve performance is if you are having some throttling problems. Try running ThrottleStop with the Log File option checked and send that my way too if you want me to have a look.

 

I can't deselect the 'Disable Turbo' option on my Vostro 1510.......what does that mean?

 

tranquilbarley: What CPU model do you have? If you click on Disable Turbo in ThrottleStop and it stays checked, that's usually because your CPU does not support Intel Dynamic Acceleration (IDA) or Intel Turbo Boost.

IDA was used on many of the Core 2 mobile CPUs but not all of them and Turbo Boost is used on many of the Core i5 and Core i7 CPUs but not the Core i3 series.

Post the model number for your Core 2 CPU and I will see if I can find it in the Intel bible to see if it supports IDA.

 

I have a Core 2 Duo T5670(1.8GHz,same as T7100).Aren't all T7xxx series CPUs supposed to be IDA ready?I haven't found any exact results myself,but even if the T5xxx series CPUs don't support IDA,I've found this thing clocking 2 Ghz at idle when SpeedStep is enabled in the BIOS.So,it should support IDA right?

 

If the T5670 was exactly the same as a T7100 then Intel would have called it a T7100. They both have a default 9 multiplier but the lower model number might mean that IDA is not available in the T5670.

On a T7100, ThrottleStop should let a person adjust the multiplier up to 10 so you have access to IDA. Does the Set Multiplier adjuster max out at 9 for your T5670? If it does then no IDA.

It is also possible that the bios has locked out IDA even if the CPU supports it.

 

Update : I downloaded 4.00 today because 4.10 would hang up.When I tried running it(with speedstep on in the BIOS),the Disable Turbo button was turned off,and the clockspeed was like 1844Mhz,but it hung up even though it was only in monitoring mode.When I turn speedstep off,I can't deselect Disable Turbo.And the Set Multiplier goes up to 10x,but even if I keep it at 10x,it stays at 9x,although other multipliers respond,I think that might be because of 'Disable Turbo'.
But if the BIOS locked out IDA,how come it goes up to 2 Ghz by itself?

 

"Oh god I post so much"

Erm what does editing these do?

 

xShadowCrisisx: In the C State window do you see the Package C State Limit button that is set to C7? Some manufacturers leave this button unlocked but Asus has locked this feature so it can not be adjusted. When unlocked, that button can be used to adjust what C States the CPU Package will be allowed to enter which has proven to be useful for some music creation software as well as limiting or fixing some CPU / motherboard whine issues. Your data shows that Asus has decided to turn off the C7 sleep state so neither the individual cores or the CPU package are being allowed to use C7 for maximum power savings when lightly loaded. There are some modified bios versions available for the Alienware M18x to access C7 but I haven't heard of anything for Asus. It usually doesn't make a significant difference to power consumption so some manufacturers probably decided not to bother with C7.

As for the Demotion / Undemotion options; I have no idea. I read the Intel documentation but it might as well have been written in a foreign language. You can play with those and have a look at what C States your CPU uses but I haven't heard any uses for these options or if they are good or bad.

Does the ThrottleStop Power Saver feature make any difference in reported power consumption at idle? This feature was designed for the early Core 2 mobile CPUs. Not sure how much of a difference it makes with Intel's latest Core i CPUs.

tranquilbarley: Can you post a screen shot of ThrottleStop while running a single threaded benchmark? A single thread of TS Bench is good enough for this. The way Intel Dynamic Acceleration works is it only boosts the speed of a single core while the other core is asleep. If your bios prevents you from deselecting Disable Turbo, that means it has turned this feature off. With Disable Turbo checked, ThrottleStop shouldn't be showing you any turbo MHz. The Set Multiplier adjuster is sending requests to the CPU but those requests will be ignored if Disable Turbo is selected or if SpeedStep is turned off.

 

The power saver does work quite good. I did that for testing purposes,on that profile EIST is off, turbo wasnt disabled, BD Prochot is on. Doesnt throttle my pc. I keep in on in case.

 

Can anyone answer why after i just redid thermal paste on my laptop that when i run throttlestop it says that WinRing0.dll could not be opened?


EDIT: *cough* i have to g51 *cough*

EDIT: also toggle 1FC says cpu is not support???

well for kicks and giggles i restarted and tried again and now toggle1FC says winring0.dll is missing but throttlestop 300 seems to work....whatever. I'll use throttlestop now i guess

 

Does anyone else keep getting pauses either when typing or watching a video when throttlestop is running?

 

HopelesslyFaithful: Have you tried using one of the recent versions of ThrottleStop from my sig? The WinRing0 library that ThrottleStop depends on is finicky. If you have a slow hard drive or some overly aggressive anti-virus software running, this can prevent the library from starting up in time so some software will assume that the dll must be missing. I built more delay into the recent versions of ThrottleStop when it first starts up to try and prevent this from happening.

Open up the Windows Resource Monitor and have a look in there at what programs are using up your CPU resources. Try running CPU-Z at the same time so you have something to compare to. ThrottleStop takes up very little in the way of CPU resources. When ThrottleStop is minimized to the system tray, it might not show up in that list.

Are you monitoring GPU temperatures with ThrottleStop? Getting temperature data directly from the GPU driver is not very efficient compared to getting CPU temperature data directly from the CPU. That's the reason why I made GPU monitoring optional in ThrottleStop.

 

Hi

Im going to buy Toshiba Qosmio X505 with i7-2630QM onboard and GTX 460M. This laptop has good cooling and after little modification im going to put i7-2920XM inside and two hard drives.

Will throttlestop be able to change multiplier to higher values?

Chipset is propably HM65.

 

Most likely, no. It all depends on the notebook's BIOS/XTU.

 

Turning off gpu monitoring fixed it.

 

Crap, so no way to increase multiplier other than modify BIOS which is very complicated job? And what about XTU? I dont recognize this tool.

 

Hello,

Managed to successfully activate Dual-IDA through ThrottleStop on a U7600 and lowered the voltage from 0.9375 to 0.8750 (with 0.9000 in between first, tested wPrime32) and completed 1024 wPrime test without BSOD (VID Voltage Range 0.8V-0.975V).
Also added shortcut to TS in the XP Startup folder (all following this guide from step 3 http://forum.notebookreview.com/6946691-post544.html) ...
Now today I booted up my laptop and for no apparent reason it rebooted itself. First thought it might be the new hardware I added yesterday in the pcmcia slot (2 USB ports) so removed it but no difference, still rebooting almost immediately after loading windows.
So after a few attempts managed to remove the ThrottleStop shortcut from my startup folder and can now successfully load windows. Now I managed to see a BSOD momentarily after TS had started loading and immediately caused a/the reboot.
Now that I am typing this I am reminded that I should've saved a copy of the .ini file before deleting the entire folder.
But any previous cases like this? Search on "reboot" rebooting" and "bsod" yielded no results ...

edit: now re-doing all the steps and not messing with the voltage and not having a shortcut in the startup folder there is no BSOD after starting TS manually. Will try adding the shortcut to the startup folder now ...
This still works as well, only other change from before is that I have not set it to start minimized. Will be the next test I suppose ... Just tested, no problems here either. So only thing left is VID , but will leave it alone for the moment or perhaps go down to 0.9000 only.

 

Hey unclewebb,
For some reason when it's running ThrottleStop,it doesn't permanently stay at 2 ghz,it keeps wavering between 1.8 - 2.0.And after I close ThrottleStop(not sure whether this is related,because I only tried once),it gets stuck at 1.6Ghz or 800Mhz.So no IDA?

 

Intel Speedstep at work here. Google if unsure.

 

tranquilbarley: Your T5670 is working exactly as Intel designed it to work. The default multiplier is 9.0 for your CPU and when Intel Dynamic Acceleration kicks in, the multiplier increases to 10.0. When both cores are active, the maximum multiplier is 9.0. When 1 core is active and the other core is in the C3 or deeper sleep state, then the multiplier will increases to 10.0.

When you are running a single threaded benchmark, that is keeping the equivalent of one core fully active. Whenever any Windows background task needs to be processed, that wakes up the second core which immediately drops the multiplier for both cores. This is happening hundreds of times a second so you end up with the multiplier constantly bouncing between 9.0 and 10.0. ThrottleStop reports a very accurate average of that.

You might want to try running the Hyper PI 0.99b benchmark.

Hyper PI 0.99b (Super PI Mod front-end) Download - EXTREME Overclocking

If you run a single thread of this benchmark, it will automatically get locked to a single thread of your CPU. Run a 1M test and watch the reported multiplier in ThrottleStop. It will be much easier to see IDA in action. The core that Hyper PI is running on will show very high CPU usage and a very high multiplier. The core that is spending most of the time asleep should show a multiplier close to your default multiplier.

The only way to get both cores locked at the IDA multiplier is if you can toggle EIST on and off. Many laptops do not have this ability. EIST in ThrottleStop will be grayed out which means this feature has been locked out by the bios.

If IDA mode was not working on your laptop, it would be impossible to see a reported multiplier higher than 9.0 so your CPU averaging over 9.3 on both cores at the same time confirms that IDA is working for you. You need to eliminate as many background processes as possible when testing to keep the second core in the sleep state if you want to maximize the percent of time your CPU is using the IDA multiplier.

For your other problem, go into the ThrottleStop Options window and make sure Do Not Reset FID/VID on Exit is NOT checked. This will write the maximum default FID and VID to your CPU when ThrottleStop exits so Windows can take over control of your CPU again.

 

Hi!

I have a MSI GT780DX with a i7 2670qm cpu. The clocks are going up and down, between 2.2GHz-2.9GHz, even when the cpu is under heavy load. How can I stop this. I tried TS 4.0, 4.1 but it seems to be not working. The clocks are jumping all the time. I would like to stop them at 2.8GHz (4 cores 8 threads), only 3cores running above that. I need 4 cores at max speed.

 

I can enable/disable EIST when SpeedStep is turned off in the BIOS. So, do I need to get a modded BIOS to enable dual-IDA? If so,where do I request one?

 

Me too I want my 4 cores to run at their full speed.

Thank you

 

You can't -- welcome to Sandy Bridge. 2.2Ghz is technically the ' full speed' of the 2670QM. Anything more than that is considered ' turbo boost' and you will only see that turbo boost applied if there is heat and power to be spared. So yes, it will fluctuate because it's deriving the amount of turbo boost based off of work load (# of cores to use/park), TDP and temperature.

Unless you have a modded BIOS which has TDP limits and durations unlocked, there is nothing you can do -- and even then it's still not perfect. These CPUs are plenty fast for today's games; I can't seem to understand what the problem is.

 

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Could you reupload your modded BIOS for MSI GT780.
Thx.

 

It is impossible for any software to run a non-Extreme CPU at full turbo boost all the time. For the second generation Core i mobile CPUs, only the Extreme CPUs lilke the 2920XM can run all 4 cores at a fixed speed. That is only possible if the bios is unlocked and allows turbo TDP adjustments.

 

This is a great application and much appreciated. I just wanted to confirm that when I exit ThrottleStop, all setting revert back to default?

 

Why does Intel lock undervolting in their ULV CPU's? The i3-2367m in my DM1 is already low voltage, but I'm sure I could drop the voltage a bit and eek out even more battery life out of this sucker.

 

Hardware mods of the voltage regulator might be able to do that, but it's hardly worth it. The SB CPUs run very low power already compared to previous gens. Just need to configure your system correctly. I see idle power consumption of a 2560P with i5-2540M CPU at 4.9W with a 7200rpm HDD. If yours is more then it requires software tweaking of the SATA, wifi, HD3000 power details.

 

How do I hide the throttlestop icon from system tray, but not GPU and CPU temperature readings? Also whats the difference between SLFM and SLFM6 mode and is it possible to automatically use different voltages for different multipliers?
E.g. 0.9v for all multipliers except for the max multiplier which needs 0.915v to be 100% stable

 

When you exit ThrottleStop and reboot, your CPU will return to its default settings. If you do not reboot, it depends on how you have ThrottleStop set up and it depends on what CPU you have and what changes you have made. Your best bet is to go into the ThrottleStop - Options windows and make sure that "Do Not Reset FID / VID on Exit" is NOT checked. This should allow Windows to resume control of your CPU when you exit TS. If you have a Core i processor, you will have to manually reset the TDP / TDC numbers before exiting ThrottleStop if you have changed those.

jackluo923: On the Core 2 mobile CPUs that have a 200 MHz bus speed, Intel designed SLFM mode so it lowers the bus speed to 100 MHz and then it increases the multiplier to 8.0 for a total of approximately 800 MHz. The SLFM6 setting drops the multiplier down to 6.0 for a total speed of 600 MHz. This speed option is not documented by Intel so I thought it was kind of a neat feature to add to ThrottleStop.

I found that a 45nm Core 2 processor should spend an insignificant percentage of time using the immediate multipliers so I decided to keep ThrottleStop simple and didn't include that feature. If a CPU is working, it should be using the highest multiplier to get a task done as quick as possible so it can spend a larger percentage of time in one of the deeper sleep states like C3/C4/C6. Core voltage is automatically dropped down when a CPU enters these states to a value far lower than ThrottleStop or RM Clock can let you select. Using intermediate multipliers slows a CPU down so it is forced to spend more time in the C0 state working and less time in the C sleep states which does not save you anything and can actually increase power consumption.

If you need different voltages for the intermediate multipliers then your only option is to use RM Clock. Micro managing the FID / VID didn't save me much energy on my 45nm T8100 when testing.

http://forum.notebookreview.com/6369641-post5058.html

 

With a i7-2670QM TS shows a minimal idle power of a little less than 6W.
(Multiplier locked to 8, Power Saver, EIST, BD PROCHOT, C1E all checked)

This seems quite a lot to me. Is there somewhere a list for comparison?

 

The power consumption data that ThrottleStop displays is data that the CPU uses to control Turbo Boost. It was not intended to be used to display accurate idle power consumption. I have no idea how accurate it actually is at idle.

The other problem with this power consumption data is that is is based on the CPU VID voltage so it is not based on actual voltage like it should be. If VID voltage and actual voltage are similar, perhaps this number might be a reasonable approximation of power consumption but knowing some of the limitations, I also know it could be somewhat meaningless. I decided to report this data in ThrottleStop and if it is useful to you that's great and if it is not useful then ignore it.


Here's table 5-4 from the data sheet but it only shows a maximum power consumption number and leaves out typical power consumption which might be more interesting.



http://www.intel.com/content/dam/ww...nd-gen-core-family-mobile-vol-1-datasheet.pdf

What does the Task Manager show for your CPU when it is supposedly idle? Maybe you have some background tasks that are keeping your CPU more awake than it should be. It might be interesting to compare this number to other similar CPUs. If the number is a little on the high side at idle, I wouldn't lose any sleep over it. Eliminate as many background tasks as possible and see if you can get it any lower.

 

Thanks for the information. It would be really nice if we could collect some values from other users.

To me 6W sounds too much power for a mobile cpu in idle.

Task manager shows only little activity.

 

How do I get access to voltages below 0.900V? Lots of users have access to it, but I can't seem to adjust voltage below 0.900V.

Also, is there a way to hide the throttlestop icon, but not temperature monitoring icon?

 

The minimum voltage a Core 2 CPU can be adjusted to is set by Intel at the factory and that value can vary from one CPU to the next. ThrottleStop reads this value correctly from each Core 2 CPU. It is not possible for any software to adjust a CPU to a voltage lower than the minimum value.

ThrottleStop does not have a feature to hide the main ThrottleStop icon. I don't have enough time to work on ThrottleStop anymore so I will not be adding this feature.

 

However, with the same laptop(likely with same motherboard) with same processor (SU7300 CULV), can set voltages lower than 0.900v with Throttlestop (4.10). Can this be OS dependant since i'm running Windows 8 consumer preview atm.

Examples:
http://forum.notebookreview.com/8461047-post2181.html
http://forum.notebookreview.com/8458142-post2179.html

 

jackluo923: The minimum VID voltage is CPU dependent and has nothing to do with the operating system or motherboard used. Each CPU model like the SU7300 can come from Intel with different minimum and maximum VID voltage values. The CPUs with lower VID values are usually sought after because they tend to overclock better and consume less power.

gilipollas: I found a review at Anandtech where he properly measured CPU power consumption and a Core i7-2600K at 3.4 GHz or overclocked to 4.4 GHz consumed the exact same 5W at idle. The ThrottleStop power consumption estimate of 6W that you are seeing does not seem to be too unreasonable.

http://www.anandtech.com/show/4083/...core-i7-2600k-i5-2500k-core-i3-2100-tested/21

You could try starting a new thread to collect some data but you probably won't get much feedback and the feedback you do get might be meaningless. The number of background tasks running on a computer varies a lot from one user to the next so it will be difficult to get any scientific data this way.

 

Thanks unclewebb. With this report my values sound very reasonable and also the values TS shows seem very reasonable. But still i find 5W a little bit high for a mobile cpu.

I just made some series of observations of Multiplier/Power/Voltage during running wPrime. After that i fitted voltage to power with a 2nd degree polynom. Well, just for fun



Power Mult Voltage
9,2 8 0,8156
10,2 9 0,8406
11,4 10 0,8556
12,5 11 0,8806
13,8 12 0,8956
15,2 13 0,9257
16,8 14 0,9407
18,3 15 0,9657
20 16 0,9857
21,8 17 1,0107
23,9 18 1,0308
26 19 1,0558
28,1 20 1,0758
30,7 21 1,1008
33,3 22 1,1259
35,8 23 1,1409
38 24 1,1559
40,7 25 1,1759
43,6 26 1,1959
46,3 27 1,2109
49,3 28 1,231

 

I just try and find high temperatures cpu and system

TS settings look at picture, 66°C at idle and 83°C at super pi single core with i3 looks like a hot. The fan run all time at low, sometimes at high rpm. But still running at idle.

Is there any chance how undervolt this cpu or lower cpu temperature?

3.3w and 66° C is weird.

 

TS or batterybar gives instantaneous draw of the system when running on Battery. IThat is an accurate number. We have user vnwhite see his whole 2560P with a i7-2820QM draw 4.9W at idle. Give the overheads of the LCD, I/O, it would mean the CPU would be drawing very little power, certainly less than 3W.

 

4.9W, what the f...!!! ;-)

I measured down to 12W with TS/RMclock but with internal screen disabled and external screen at mini-displayport, wifi enabled, logitech nano receiver connected to usb, windows 7 energy profile minimal battery use.

 

Yes.. and I got my i5-2540M 2560P down to 4.6W at idle using a SSD. You can see a screenshot of it at http://forum.notebookreview.com/8030189-post145.html .

Managed to get Core2duo P9400-2.4 Dell E4300 and L9400-1.86HP 2530P both width harddisks idle at 5.2W when undervolted. 1st gen i5 X201 and Dell E4310 I measured at 5.8W with a harddisk.

So my preferrence for battery life is: 2nd gen i-core < core2duo < 1st gen i-core. Ivy Bridge should technically take pole position honors but we'll need to wait and see.

 

This looks really impressive, but why isn't the battery life about 20h?