The ThrottleStop Guide

aquasonic: To test if your CPU can run the full 12 multiplier on both cores at the same time, run a stress program like 2 threads of TS Bench and show us a screen shot of that while running. The only way to have both cores locked to the highest multiplier (Dual IDA) is with EIST disabled.

forteller: Can you post a CPU-Z screen shot for your CPU? Does ThrottleStop start up for you or does it say CPU not supported or something like that? I know ThrottleStop works on the original 65nm Core 2 CPUs so maybe I can get it working on your CPU once I learn some more about it.

matmat07: Modern Core i processors should be doing a fairly decent job of scheduling tasks on unused cores to maximize performance. Some monitoring software like the Task Manager may not be quick enough to give you an accurate look at what's really going on.

Post a screen shot of ThrottleStop and CPU-Z and I will tell you what I see. CPU-Z was designed for consistent validation purposes. ThrottleStop was designed to tell you what each thread of your CPU is really doing. It uses high performance timers inside the CPU and follows monitoring methods recommended by Intel. You can trust the data coming from ThrottleStop.

9LPRS393: Thanks for giving away all of ThrottleStop's secrets.
If you send me a PM message or send me an email, I am always willing to help. I don't check this thread on a daily basis so I am glad that you were able to figure out the magic Core 2 Duo register for unlocking Extreme CPUs without my help. It will be interesting to see some utilities for Linux users by using this info.

ole258: I didn't bother with profile switching like RM Clock does because I didn't see any need for this in the newer 45nm Core 2 CPUs. These CPUs automatically go into low power sleep states at idle so getting overly technical with the FID and VID at idle seemed pointless to me. Here's an example I posted in the NBR Under Volting Guide of some testing I did with my 45nm T8100.

http://forum.notebookreview.com/har...35824-undervolting-guide-506.html#post6369641

Running a 45nm Core 2 Duo at a reduced multiplier is not a great way to save power. You are better off running it at full speed, let it get a task done quickly and then that will enable it to get back into one of the deeper sleep states like C3 so it can save power. This saves more power than running a CPU with an intermediate multiplier. Here is a good paper that blows a hole in some of the myths.

http://www.cs.berkeley.edu/~krioukov/realityCheck.pdf

3.1 Race to Sleep

The most immediate implication of these two observations is that they explain anecdotal evidence for a model of computation known as “race to sleep.”

This idea holds that the most energy-efficient way of scheduling a computation is to put all hardware into the highest-performance state and race to completion as quickly as possible. Once finished, the hardware should drop to very low power modes – potentially ACPI sleep states or even powered off. The explanation for this fact draws on both the constant power and the linear power-performance tradeoff.

miro_gt: You sound like a good candidate for beta testing ThrottleStop 4.10.

Hopefully I have some time in the next few days to get this new version finalized. I have never had or heard of an explorer.exe not responding hang when using ThrottleStop. I guess you will have to test TS 4.10 when it is ready to see if it makes any difference.

 

send it over, I would be glad to see how it does. Not going to be my first time testing new version though, lol.

 

Recently I have upgraded my X9100 to QX9300 ES on Clevo M570TU. And saw one interesting thing. When I overclock CPU in BIOS and launch HWiNFO or ThrottleStop it shows that two cores are at 2.93 and other two at 2.53 (factory clocks). But when I overclock through ThrottleStop all four cores get overclocked.
What coul be the broblem that through bios are overclockable only two cores?
Maybe someone knows how to fix it?

 

There you go.

For core parking, I guess I should be able to see that,and I don't:

 

Hello @unclewebb,

Thanks alot for introducing this great software of Throttlestop !

I am using Qosmio X775-Q7272 and I am having the throttling problem while playing Aion Online Game.

Upon the latest release of Bios 1.6 from Toshiba, many users have reported that it solves the throttling problem with many other games like BF3....ect

My laptop is on bios 1.60 and latest Nvidia beta drivers version 290.53

However, this throttling issue still happens when I play this Aion Online Game. The normal FPS I get while playing is around 50 or 65..mostly 65fps... but when the laptop is getting hotter, the throttle happens and the FPS goes down to 30fps or 25fps and takes like 3 to 5 mins before it goes back to normal or when I press ALT+Tab to windows and then get back into the game, the FPS will go to normal.

I've just used your software Throttlestop and it works, I get constant better FPS of 65+.

Sadly, I can only play for around 20 or 30 mins... my laptop shuts down by itself.

I am posting here to ask for advise, how to make my laptop runs properly without any shut down.

I am having no knowledge about computer and don't know how to configure this software.

I've just used your software without changing anything except disabling the HD PROCHOT function.

Here is the image:



Please tell me how to set up this software properly so I can play smoothly. I am using a logitech cooling pad as well.

I am waiting for your reply and support,

I am not a native, sorry for my English

Thanks in advance,

 

Hi,

Update about Throttlestop with my Qosmio x775-7272

See my log and I put multiplier to 20 and the result is in the log file I've attached.

I am not sure my laptop can overclock with this kind of heat... It reached 98 C

After seeing this temp, I suddenly closed my game after playing just 5mins, can't believe this.

If it reaches 100 C, my laptop will shut down again for sure.

I don't know why this Qosmio is created with such low cooling system, I am using a cooling pad too... I just bought this laptop for like a few months so I guess there is not much dust inside the laptop to create such heat.

I notice my normal temp when doing normal stuffs like surfing internet, play itunes music, the temp is around 60c to 65c already. However, I am from Asia, the weather here is pretty warm, my room has air-con with 22c though.

I bought this laptop for gaming, now I am sad with this kind of performance.

Any advice or improvement ideas would be greatly appreciated.

I don't know much about computers, having problem lagging badly when playing Aion Online Game, that's why I try to find solution to this. The bios update 1.6 from Toshiba doesn't help at all.

Note: when using Throttlestop, Aion Game runs very great that normally this laptop can't give such performance without this software... with Throttlestop on, the fps stays stable and the gaming is very very smooth.

Thanks

 

Hey unclwebb, thanks for this great app, has saved me needing to upgrade but my cpu is starting to feel the strain!

I've been running a T7500 @2.4ghz but i need something with a bit more grunt. The T9500 is 2.6ghz but how much of a faster clock speed will i get with throttlestop? 3ghz? It's for audio and it's important that i get a fast clock on a single core for some software that i use. It's either upgrade the cpu or the laptop but i'd rather get a cpu as long as it will be a step up from the T7500.

Cheers!

 

if you can run dual IDA then it would be 2.8GHz for that T9500, same as what I run mine at. If you can not run dual IDA then it will be the stock 2.6GHz + occasionally one core at 2.8GHz for short period of time.

TS can overclock extreme processors only. There have been few exceptions of some engineering samples that came with unlocked multiplier, but those are rare.

 

Thanks! I can run dual IDA. I am also looking at the X9000 so good to know but there only seem to be engineering samples around on ebay. Would one of those be ok?

Laptop is an M1330, it's still under warranty but has the nvidia graphics. The last mobo is supposed to have a new revision of the chip that won't overheat, does seem to run cooler but i haven't really pushed it. I think the X9000 would be better for the OC but i've read it can be too much heat for the m1330 so i don't know which to get.

Cheers.

 

zeera: Sounds like your bios is not setting up your Quad properly. A Quad consists internally of two separate Core 2 Duos which can be set to different speeds independently. ThrottleStop actually has an obscure feature called SplitQuad which lets you choose which side of your Quad runs at full speed and what side runs at the minimum speed. You can read about that feature in the included docs. Not too practical but good for a screen shot. If there isn't an updated bios version available for your laptop then I guess you will have to depend on ThrottleStop. I think the last computer I saw with this issues was a MSI desktop when running a Core 2 Quad.

tjphillips: I am not sure what CPUs your laptop supports. You probably won't see a huge increase in performance with an upgraded CPU. An X9000 would be nice if it is supported but the eBay price is still high.

matmat07: I don't know what the official definition of a parked core is. It looks like in your graphs that 1 of the 2 threads on each core is mostly unused or parked. I think the C0% in ThrottleStop is still going to be in the 0% to 1% range when it is parked. I haven't done any testing on whether core parking is good or bad.

mytech2012: I think I remember answering some of your questions in another forum.

 

Thanks for help!
I thought the same that the problem is in BIOS.

 

Afaik, it supports any processor with an 800mhz fsb but i read the heat could be too much for the m1330s cooling altough a few people on here have done it.

I think i'll call Dell tomorrow and ask them, the gpu does still get quite hot under normal use but i think the cooling could be improved, maybe replace it and/or put some good quality paste on the chips as i don't think it's been changed since 07!

Cheers.

 

Thanks for explaining.

But now I will tell you my behaviour:

As I told, I use P8400 (in Lenovo T500).

RMClock-profiles looks like this:



I have unlocked EIST-Bit by Bios-Mod and disabled SpeedStep in Bios-Settings, otherwise I could not turn EIST on/off in Windows.

So in Win7 (if RMClock is disabled), CPU is always running on Max-FID/VID - never on any C-State.

Your discription^^^ sounds to me, like regular Speedstep-function.

 

And I can confirm that on a friend PC wih a differend i7 it does say parked

 

Hey, there's a button called TPL which shows this:


What does it do?
Thanks.

 

Just a quick note to alert you that voting for the NBR Amazing Content Contest comes to a close on February 17th! Also, we added an additional prize for the thread that comes in 2nd place in the member voting, so get out and vote for this thread! Rally your supporters and storm the voting both while there's still time!

 

Go out and vote, people!

Let's not forget the effort that Unclewebb put for us to get the most out of our systems for FREE.

Let's give a little something back!

 

Bump for Unclewebb! VOTE! http://forum.notebookreview.com/roundup/641438-nbr-amazing-content-contest.html

 

You rocks! Fixed my CPU problems

 

xShadowCrisisx: That window you opened up lets you adjust the Turbo Power Limits (TPL). Many laptop manufacturers have locked this feature in the bios but it looks like your laptop has this feature unlocked so it is adjustable.

The newer 2nd Generation Intel Core i CPUs contain two limits that control when your CPU is allowed to use Turbo Boost. There is both a long and a short term limit. In your example, for 32 seconds your CPU can operate beyond 45 watts up to a maximum of 60 watts. It is not allowed to operate beyond 60 watts other than for a few milliseconds before Turbo Boost will be reduced which will reduce CPU power consumption to keep it under the maximum limit. If you are running your CPU fully loaded then being able to adjust the 45 watt limit a little higher should get you a little more Turbo Boost depending on what CPU you have. Your CPU looks like a non-Extreme CPU so Intel locked these down so you can only adjust upwards from 45 watts to 48 watts as far as I know. For XM CPUs, the sky is the limit. 2920 XM users have been pushing the envelope with this feature and some users are bumping this up to 130 watts. That will warm your lap up but will allow an XM CPU to really stretch its legs so to speak. Lowering these values might be a way to reduce the amount of Turbo Boost when you want to reduce heat output and perhaps maximize battery run time. I haven't seen any testing of this.

Your CPU package current limit is locked at 97 amps. That number is usually high enough that it won't be a Turbo Boost limiting factor. ThrottleStop has it grayed out because your bios locked the ability to adjust this and also locked the ability to unlock this feature. That's what the grayed out and checked Lock Current Limit Register box means.

For the record, ThrottleStop 4.00 works correctly with Intel Core i 2nd Generation CPUs.

I keep reading in forums that 2nd Generation CPUs are not supported but obviously that is not true. As long as your bios hasn't locked these features, the turbo power limits are adjustable with ThrottleStop.

Next time you ask a question, maybe move the top window beside the main window so I can at least see what CPU model you have.
My wild guess is it looks like a Core i7 2630QM.


Thanks for all the votes.

 

Oh, thanks I set limit 1 to 50 and limit 2 to 65. Nothing is going wrong so far. I'll make a little screenshot of my cpu tmr.

[EDIT]
hmm, nvm, heerree yaa gooo:

 

Try adjusting these limits when running a stressful bench like 8 threads of wPrime 1024M. You might be able to watch the multiplier and power consumption data to see how changing these limits controls turbo boost.

I am pretty sure the maximum limits for your CPU are 48 and 60. Setting these values higher than the Intel maximum limits probably isn't going to do anything for you.

 

Ok, thanks for the help

 

What if I disabled "Enable Limit"???

 

With your CPU, even if you disable "Enable Limit", there is still a limit of 48/60 hard wired into your CPU. There is no way around that limit AFAIK.
Time to start saving up for an XM CPU.

 

I have an unlocked BIOS that allows the TPL to be changed in the BIOS only.

This seems to work:


However, since the multiplier can't be raised past the default limit (31 for the 2920XM ES), power consumption (for me, at least) never exceeds 70W. There are also options to change the turbo multiplier limit in the BIOS, but they don't seem to actually take effect; nor does changing the turbo multipliers in ThrottleStop do anything. Even though the multipliers aren't really applied; the higher I take the turbo multipliers in the BIOS, the higher I can take the multiplier in ThrottleStop. So it seems something is still locking the multipliers.

I know that bit[63] on MSR 0x610 locks the power limit. Does it also stop the turbo multipliers from being increased? Any ideas of what the lockbit for the multipliers may be?

Thanks.

 

I prefer getting a Powerful Laptop, because it is portable.

I'll Get Asus G74SX-3DE.. But in the future there will be more powerful ones.

 

5482741: Unfortunately I have never had my hands on a 2nd Generation Core i Mobile Extreme CPU for testing purposes. ThrottleStop is not able to modify the multipliers higher on these CPUs. The maximum limit is set by the bios.

Have you played with the Intel XTU utility? One of the versions is supposed to allow turbo multiplier adjustment on these CPUs. The trick is that the CPU needs to reboot for the higher turbo multiplier to take effect and you might also need a bios that co-operates so the new maximum turbo limit is not reset to the default maximum. AFAIK, this is the only way to change the maximum limit from within Windows. The CPU has to reboot and the register that contains the maximum turbo limit has to be left alone by the bios. It does not seem to be as simple as it was with the first generation XM CPUs like the 920XM.


MSR_TURBO_RATIO_LIMIT 0x1AD is the register that contains information about the maximum turbo limits.

MSR_TURBO_RATIO_LIMIT
Package Maximum Ratio Limit of Turbo Mode.

RO if MSR_PLATFORM_INFO.[28] = 0,
RW if MSR_PLATFORM_INFO.[28] = 1

7:0 Package Maximum Ratio Limit for 1C.
Maximum turbo ratio limit of 1 core active.

15:8 Package Maximum Ratio Limit for 2C.
Maximum turbo ratio limit of 2 core active.

23:16 Package Maximum Ratio Limit for 3C.
Maximum turbo ratio limit of 3 core active.

31:24 Package Maximum Ratio Limit for 4C.
Maximum turbo ratio limit of 4 core active.

The lower 32 bits contain the maximum multipliers. The ThrottleStop TRL button lets you adjust these values. The upper 32 bits in the above register are listed as reserved by Intel which means in the public documentation, Intel is not saying what is hiding in there. It is possible that bit[63] in this register is a lock bit and that might be why ThrottleStop does not work.

The MSR_PLATFORM_INFO register is located in MSR 0xCE and bit[28] needs to be set to 1. If it is zero, you can't change this while you are in Windows. RO stands for read only and RW is read write.

Without any documentation, hardware to play with or time to get this all figured out; ThrottleStop won't be able to adjust these CPUs higher anytime soon.

 

Thanks for the info, I just checked MSR 0x1AD, and it appears that despite the the changes made in the BIOS, all of the turbo ratio limits are at default levels upon booting into windows.

So either the unlocked turbo ratio options in the BIOS aren't actually writing anything, or something else in the BIOS is resetting the values to default.

 

Hi unclewebb.

I'm a moderator of one of the biggest Acer laptop community in Russia, acerfans.ru . We have a lot of users using your great software but most of hem have difficulties with english. So I decided to translate it into Russian if you're agree. I can do it in many ways-using a translation file or some resource editor. All help files and guide will also be translated. So the question is - is it OK for you? Please PM me if possible (did't found how to PM you here).

 

Hi,

I am not sure really how to get the job done with Throttlestop so I would need some advice. I am running a Samsung RC530 which has Intel i5 2410M and Nvidia G540M.

When playing games for longer period of time, the CPU starts to get overheated and thus starts throttling. When the game is launched the CPU goes to 27 x 99.8Mhz, making it 2694,6Mhz. When the CPU first reaches 86C, it drops the multiplier to 23, making it 2295,4. After a while the temperature still rises towards the 86 it starts to drop the multiplier to 14 thus causing the game to lag.

Here is the log: ThrottleStopLog - Pastebin.com

So the important parts are:

Game Started -> multiplier set to 27
02/21/12 13:36:11 27.00 57.2 100.0 100.0 0 64 1.2310 21.9

CPU hits 86 temperature and multiplier is set to 23:
02/21/12 13:39:49 23.00 62.5 100.0 100.0 0 84 1.2260 21.9

CPU hits again the target temperature and causes the throttling:

02/21/12 13:46:49 23.00 62.7 100.0 100.0 0 87 1.2260 22.2
02/21/12 13:46:50 21.83 63.7 100.0 100.0 0 82 0.9607 21.0
02/21/12 13:46:51 14.00 69.0 100.0 100.0 0 79 0.9607 11.5
02/21/12 13:46:52 14.00 73.5 100.0 100.0 0 79 0.9607 11.6
02/21/12 13:46:53 14.00 73.4 100.0 100.0 0 78 0.9607 11.6
02/21/12 13:46:54 15.31 70.4 100.0 100.0 0 84 1.2260 13.1
02/21/12 13:46:55 23.00 62.8 100.0 100.0 0 86 1.2260 22.0

So what steps I would need to take to prevent this from happening or is the laptop so badly cooled that its game over?

 

magrok: There is an email address in the About... box of ThrottleStop. You can contact me that way. I have very little free time to work on ThrottleStop anymore but I will see what I can do to help you and your Russian friends. You can modify ThrottleStop or the documentation however you want. It's freeware. By using Google translate, I have been to the acerfans.ru site many times. I like seeing how others around the world are using ThrottleStop.

otomi: I have never worked with any Samsung owners so I don't know what throttling methods Samsung uses and if there is anything you can do about it by using ThrottleStop.

How do you have ThrottleStop set up? Do you have ThrottleStop turned on and do you have a check mark in the Set Multiplier box and is that set to Turbo? Post a screen shot of ThrottleStop so I can have a look.

The default multiplier for your CPU is 23 so it is obvious that the first method of throttling your CPU is that Turbo Boost gets turned off. There are a variety of ways to do this but I don't know what method Samsung is using. After it runs at the 23 multiplier for a while, then it drops much further in one big step to try and reduce the heat output. If you can find a way to improve the cooling, you might be able to avoid this throttling.

Have you replaced the thermal paste or done any other tricks like attach copper pennies to the heat pipe tubes to improve cooling? Some tricks like this might be enough to keep you below the throttling point while gaming. A laptop cooler is another necessity. Using ThrottleStop to run your CPU at a reduced multiplier while gaming is another option that Acer owners use to avoid triggering the built in throttling scheme.

Does ThrottleStop GPU temperature monitoring work for you? That should work OK if you have an Nvidia GT-540M. Turn that on in the Options window if possible so the log file will have data for both the CPU and GPU. If that doesn't work then try logging with GPU-Z while ThrottleStop is logging the CPU. In your log file, a CPU core temperature of 86C seems to be the magic number that causes Turbo Boost to initially get turned off. Try running another log file with Set Multiplier checked, BD PROCHOT unchecked and check the two types of clock modulation and set those to 100%.

There is another method to throttle Intel CPUs that I know about but I haven't seen any manufacturers using that method yet. Maybe the engineers at Samsung are wiser than the rest and I will have to come up with a Plan B.

 

Hi Guys n'Gals,

I'm having Throttlestop issues.
After a recent re-install of 7-64bit I can't open Throttlestop without getting the dreaded BSOD. The options screen sometimes appears before the hard crash, but the end result is the same every time.
My CPU is a X9000, so it's rather annoying that I can't O/C it.
I've used TS many times before, on this beast and others, but never encountered this problem.
I tried deleting TS and running it from different directories and drives. Also deleted the Throttlestop.ini file and even tried to manually create a new one.
I even trawled through the registry, deleting anything TS related, but still no joy.
My BIOS version is F.40.

I couldn't find much help using Google, so I thought I'd ask here. Any ideas?

TIA,

CJ

 

Hi all,

anybody here can suggest what is the best setting for 920xm for 3D complex rendering ?

i rendering car project in cinema 4D, and the CPU get hot quickly, and since my machine (M15x) have BIOS set up to turn off machine when cpu hit 100C, most of the time my notebook will shutted down before my rendering is done.

maybe my setting is too high? now it run on 27-25-21-21 , 90 - 80

 

just for note, it never crashed down on any other app, only when i do heavy duty rendering job...


EDITED : Never Mind, SOLVED it.. , multiplier set on 19 on 4 core seems to be stable, cool and fast enough

 

I have a Dell XPS M1730 that I swapped an X9000 into. I was able to OC it to 3.6ghz, after setting it to 3.4 in the bios, I had to use a 1.4250 voltage, which led it to get around the 80-90 degree range. Now I was using Orthos to stress test it and it was stable well after 4 hours, however, I noticed that over the duration of the test, one core was falling behind in the tests, one was 6 tests ahead of the other by the 4 hour mark. Should this be something I should be worried about? Does it suggest a failing chip or anything?

 

Xenovidx: This is completely normal. One core can be responsible for running more Window background processes than the other core so the number of tests completed in Prime95 won't be in sync between the 2 different cores. This is not something you should worry about. Your CPU is OK, especially if you are Prime95 stable at 3.4 GHz. Good work!

 

dang that thing will get hot at that voltage. Reminds me why I passed on upgrading to x9000 and stopped at 2.8GHz on my T9500 .. heh.

but use LinX for most torture of your CPU (for stress test), it loads more then Orthos

 

Maybe I'm doing something wrong but it seems ThrottleStop is unable to completely unthrottle Sandy Brudge CPUs under certain conditions.. It usually works just fine for me but when emulating certain PS2 games I'm only able to get 3.0GHz, even though the usual quad core turbo is 3.2GHz. When I'm encoding a video the turbo can even go as low as 2.7GHz. Without ThrottleStop it would be 2.4GHz so it's still something but I'm curious why I can't get the 3.2GHz every time. It doesn't seem to be temp related since I never go above 90C

 

I'm also getting various different readings from different programs. Throttlestop will say 3.6ghz, but RMClock will say 4.0ghz with it throttled at 3.6ghz. Right now I have throttle stop at 3.4ghz and 1.325 vid, but RMclock is reading 3.8 ghz with a 3.4 throttle. Is that normal? CPUZ will also record different Ghz readings sometimes too. I'm just not sure what to trust. Also, CPUZ and RMclock both read my cpu as a X9000, but for some reason HWmonitor will show it as a T9600, and if I open CPUz after HWmonitor, it too will read the name as a T9600, but the specification as a X9000, I figure its probably just a software error, but has anyone else ran into anything similar??

 

A heads up, TS works well under Windows 8. I have it installed as dual boot windows 7 and Windows 8 and use the same program folder for each OS...............

 

TANWare: I used Windows 8 for a day or two and was happy to see that ThrottleStop still works with Microsoft's latest OS. Thanks for confirming that.

Turbo Boost depends on both temperature and power consumption. Your CPU is not an Extreme CPU so Intel has fixed maximum turbo power limits for these CPUs. Click on the TDP button and have a look in there for what the limits are for your CPU. The way these CPUs are designed is that for a short period of time they can run at a higher power consumption value but then after a fixed amount of time, the power consumption limit drops. The only way that the CPU is able to meet this limit is by reducing the multiplier. How far the multi drops depends on what type of software you are using and how hard it is working the CPU. A high core temperature like 90C can increase power consumption which will also reduce the multiplier. I wish there was more ThrottleStop could do about this but as far as I know, these limits are hard coded into the CPU by Intel at the factory so software is out of luck. If you have an unlocked bios, ThrottleStop can be used to increase the default limits by about 3 watts which is hardly worth it. I think for your CPU the long term limit can be changed from 45W to 48W but only if the bios lets you.

Xenovidx: RM Clock is an old program that has not been updated in a long, long time. When you use the ThrottleStop multiplier unlock feature, I think I remember that it tricks RM Clock so the values reported are not accurate. Unlocking the multiplier was unknown when RM Clock was being developed so it is not a surprise that it doesn't work correctly. You can fully trust the MHz numbers that ThrottleStop displays and when your CPU is loaded, ThrottleStop and CPU-Z will probably be the same. Post a picture if they are not. When your CPU is lightly loaded, CPU-Z favors consistency over accuracy. CPU-Z has been designed for consistent validation purposes so that is understandable. ThrottleStop prefers to tell it like it is.

One problem with Intel CPUs is that the performance monitoring timers that all monitoring programs use are not a protected resource. What that means is that any software can use these timers however they wish and that can interfere with accurate results from other software. The last time I checked, CPU-Z and ThrottleStop could be run together at the same time without any conflicts. Some other programs, perhaps HWMonitor, can interfere with the results that ThrottleStop shows. If you want accurate results from ThrottleStop, do not run HWM or any side bar gadgets.

Is your CPU an ES / Engineering Sample CPU? If it is, look in the CPU-Z Specification box. That is the information that Intel wrote directly to the CPU. This information can not be changed after a CPU has shipped.

When that information is not accurate or does not include a model number, software has to start guessing at what this CPU model might be. It looks at multiplier and cache size, etc. and looks these values up in a big look up table and takes a stab in the dark. Sometimes software will get lucky and get it right but not always. Using ThrottleStop to change the multiplier can trick some programs so it won't know what CPU model you have. A retail processor should have the full model information in the Specification box and properly functioning software should be able to report the correct model number when this information is there.

Post some screen shots of CPU-Z and ThrottleStop if you want some more info and leave the rest of your monitoring tools and side bar gadgets turned off.

 

I'm trying to undervolting an acer 5739g with P7550 to lower the temperatures a bit and I have a problem.

I'm running ThrottleStop with the following options:



Uploaded with ImageShack.us

But the voltage is not changing at all.
I'm using CPU-Z to see if the voltage is changing and no matter how low I set VID nothing is changing.

see the examble screenshot where voltage in TS is set to 0.9121 and in CPU-Z it still reads the stock voltage of 1.000



Uploaded with ImageShack.us


I experimented a bit and when enable the SLFM option, then the voltage is changing alright.

Is this the right way to do it (doubt that's the case)?
What am I doing wrong?

Thanks

 

restart CPU-Z

 

I wish it was that easy.

no matter how many times I restart cpu-z or throttlestop, the voltage isn't changing!

the voltage is changing ONLY when I enable SLFM!
Is this a bug or am I doing something wrong?

 

You can only use the lowest possible VID voltage if you have SLFM enabled. This is by Intel design. The minimum voltage for most 45nm Core 2 mobile CPUs that are not using SLFM is 1.0000 which is what ThrottleStop is showing you. I should include this in the documentation but it looks like you got things figured out on your own.

Here's an explanation of why ThrottleStop doesn't fool around and use a lot of different voltages. It has proven to be mostly pointless in many of the newer Core 2 CPUs.

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

When properly set up, these CPUs are designed to enter deeper sleep states like C3/C4 where internally the voltage drops lower than any software can set so the VID setting doesn't save much power because that setting is mostly ignored by the CPU. These newer CPUs work differently than the original 65nm Core 2 mobile CPUs that first came out.

 

Errmmm.... one question.

Do I need to keep throttlestop running in the background for it to work or do I just turn it on, save, and then close the app? If it saves the settings, do I need to turn throttlestop on again the next time in boot into my PC?

Thanks.

 

ThrottleStop changes are temporary. As soon as you reboot, the bios is supposed to reset the CPU so all changes are lost and you will need to run ThrottleStop again.

Whether you need to leave ThrottleStop running all the time depends on what problem you are trying to solve and how you have ThrottleStop setup. Many Asus laptop owners have told me that running ThrottleStop once and then immediately exiting ThrottleStop was enough to cure their throttling problems. I would prefer to leave it running. In terms of memory or CPU usage, you will never notice it in your system tray but if it is left running, you will be guaranteed that it is doing its thing to keep your CPU running at the desired speed.

 

Can I OC with this software i3-370M? And if so, please explain how. Thank you in advance.

 

No, throttlestop allows to OC CPUs with unlocked multipliers and yours has locked multis. You'll need a program like SetFSB to overclock