The ThrottleStop Guide

Hm... The Dell laptop weights around 4.5 lb though, compared to the other two laptops that weight around 3.5 lb.

Is it possible to alter the TDP and voltage for the U-series CPU? I'm assuming the Dell's i7 4600M allows voltage adjustment and possible overclocking.

 

yeah you can use the voltage offset minus 0.5mV and it will works in higher frequency while still same TDP

 

Thank you unclewebb, that solved the problem.

I actually tried new ThrottleStop without .ini, but since old ThrottleStop already loaded .ini when the system booted, the PP0 value was already locked even when I closed old ThrottleStop and started newly downloaded ThrottleStop without .ini.

Anyhow, starting the system without ThrottleStop and then loading ThrottleStop without .ini fixed the problem.

I appreciate it.

Hope in the future version, there is a way to unlock PP0 without going through this.


On a separate note, how do I check whether PP0 works?

Regardless of what value I put to PP0, same amount of Ws are being used.

Thanks in advance and thank you for the awesome application!

 

So, are U series Haswell processors are also capable for undervolting with this program? What other good thing can I make for a i5-4210U?

I just found my answer ;

How do you benefit of the lower voltage? higher turbo? more constant turbo? or just lower temperatures?

 

Atom Ant - The low power U CPUs have a problem with dropping down to TDP Level 2. When this happens the maximum multiplier also drops down to only 8. The U CPU will become a slow, sluggish and miserable CPU when this happens. Reducing the core voltage will reduce power consumption which might help a person avoid TDP Level 2.

loptimistk - Good to hear that you got your problem solved. My email address is in the About box of ThrottleStop. If you are ever having a serious problem like this, send me an email. It is summer so I have been slacking off in the forums lately.

Unfortunately, the PP0 lock is set within the CPU. Once set, you can only unlock it by rebooting and then not running ThrottleStop or deleting the INI file before running ThrottleStop. After what you went through, I will have to add a pop up info window to this feature so users fully understand what they are doing.

The PP0 Limit works so you can run your CPU at a lower power limit than its default power limit. Here's an example of my 4700MQ being held way back while running Prime 95 with a very low PP0 Limit value.

http://i.imgur.com/SJyVefJ.png

You need to use the Clamp option to drop it down like this. I avoided the Lock option.

The same CPU with the same settings when running only a single thread of Prime 95 will automatically run much faster. Good performance when lightly loaded and good power consumption when fully loaded.

http://i.imgur.com/v4wVRdZ.png

I thought this feature might be handy so you could create your own low power CPUs without having to spend extra money on one. I also thought being able to access this register might be useful if a manufacturer ever decided to set this way too low in the bios. This feature might not be of any use to the majority of users.

Thanks for your feedback.

Edit - PP0 refers to just the CPU cores. Here is what CPUID HWMonitor shows when the CPU cores are clamped to 15W.

http://i.imgur.com/2kvFfZQ.png

The cores are running at 14.95 Watts so it looks like this feature is working as intended. Not sure how this feature works on other CPUs.

 

unclewebb , my resource monitor through windows 7 says that my cpu is 100frequency. but throttle stop (monitoring) shows my cpu throttling down from 1400 to 2100.hz

C states disabled through bios and power management is 100% min max cpu power. whats wrong?

 

Hi There are some things I'm wondering how to do it in trottlestop. I have used Xtu for and overclock my i7-4930mx (4x42), but now I have started with trottlestop. How can I add processor Cashe offset? It must be increased +17mv, because I have to use a higher offset when my pc is more stable. Every time I start up my machine (with automatic trottlestop boot) then I get processor Cashe ratio of 39, but want and have it at 38 for stability. How can I do this. I have turned off the boot of Xtu when my computer starts. Automatically start of trottlestop instead. To my cpu is important that i use increased Cashe offset (+17mv) and have Cashe ratio of 38. Hope you can help me with this. Thank You.

 

GeorgioB - When you have questions, post some screen shots. I need to see the main ThrottleStop screen as well as the C States window. Were you testing when idle or fully loaded? What CPU model do you have? Screenshots tell me what I need to know.

papusan - Unfortunately some of the features you are looking for in ThrottleStop are still on the things to do list.

http://i.imgur.com/DDdoEhu.png

Cache voltage and cache ratio will be fully adjustable when version 7 is finished but not sure when that is going to happen. Maybe next month.

 

Thank you for your feedback. Looking forward to the full version of these possibilities. Is it problematic and run Xtu and trottlestop simultaneously during startup of win 8.1? Should I just use Xtu to the new features to trottlestop come. Thank you so much.

 

here is it. and it goes even lower at 1600hz but i couldnt w8 to capture it. my cpu is 2.4ghz


EDIT: i found out that when i disable C1E on monitoring the my FID stucks at 18 and my mhz at 2394.. why does that affect the monitoring? i mean i dont have throttlestop enabled but C1E affects the cpu? or what?

also i've enabled throttle stop with C1E enabled and still my cpu was at 100% frequency at resource monitor. did it with it disabled the same results.

the only results that changing are those that showing on throttlestop. the FID.

 

GeorgioB - The Turn On / Turn Off feature is only to control the two types of Clock Modulation and the Set Multiplier feature. C1E is one of the low power C States so you can toggle this on and off whether ThrottleStop is active or just in monitoring mode. Playing with C1E is not going to hurt anything.

ThrottleStop uses high performance monitoring timers within the CPU and follows the Intel recommended monitoring method for their Core i CPUs. If ThrottleStop tells you that your CPU is doing something unusual then it probably is. If another monitoring program doesn't tell you anything then it is probably not following the Intel recommended method. Most monitoring apps ignore what your CPU is doing internally when various low power C States are being used.

When you told me before that you had all of the C States disabled in the bios and the ThrottleStop reported multiplier was going up and down I knew right away that you didn't have all of the C States disabled. As it turns out, you still had the C1E C State enabled. That's what I like about ThrottleStop, it tells it like it is.

Is there any reason why you want to disable all of your C States? I know that is a popular thing to do with a desktop CPU but In a laptop, that makes your CPU run significantly hotter with virtually no gain in performance. I would recommend at least leaving the low power C1E state enabled.

papusan - If ThrottleStop does not yet have all of the features you need then you are going to have to continue to run XTU at startup. Thanks for giving me some motivation to get back to work on this project.

 

Unclewebb can u help me please? Tell me if it's throttle here... and how can i resolve this, My laptop is Asus G56JR
Firstly I want to appologize for my english. Now the problem is when I run Dota2 or Warcraft 3 or any else game, I have lag for 3-5 seconds once at few intervals of minutes... My fps will go to 10-15 from 60 Can u help me guys or I need service for this problem? Btw, I have all drivers and CPU temp in Dota2 is ~80 but it's very hot in my country.

 

Can you try running the games in a windowed mode and pull up Throttlestop to monitor when the clock rates change?

If they decrease right when the FPS goes down, then there's throttling. Otherwise, something else is causing the lag.

 

i need my cpu on full power, cause i am using my laptop for djing. and cpu throttling is not allowed.

still i didnt had problems with C1E enabled. if i disable it through throttlestop, it stays disabled even when throttlestop is closed? i have the option (dont reset when closing enabled), also i have disabled intelppm driver through registry a month ago. does that matter? i though it is handling the C states on cpu.

 

It's great if you want to start on the job with these features in trottlestop. Are there any others who have requested these features? There are certainly many who want the opportunity to get a higher overclock with more opportunities for adjustments of these parameters on cpu. Thank you for the work you do. It is a pity that PC manufacturers destroys the possibility of a serious overclock of laptops. Thank you thank you again for your help. :thumbsup:

 

@unclewebb Sorry if this has already been posted but is it possible to overclock an i5 4200U? If so is it simply a case of setting clock mod, chipset clock mod to 100% and increasing multiplier?
Do I need to change TDP settings also? Any recommended settings?

Thanks

 

The i5-4200U is a locked processor so you can not use ThrottleStop to overclock them. There is no need to enable Clock Mod or Chipset Clock Mod unless your laptop is actually using these. Most U CPUs have the power limit set so low that this is the way CPUs are controlled these days. I think most manufacturers rarely use clock modulation anymore. Your old 940XM was a lot more fun and more productive to play with. Depending on your bios, ThrottleStop might not be able to do anything to improve the performance of a Core i5-4200U. I have never owned a 4th Gen U CPU so hopefully you can prove me wrong.

 

Hey guys

just wondering if I can unthrottle my GPU in my M6700 it's a 770M it throttles at 135MHZ when plug AC in it's 705MHZ

 

Throttlestop only helps with CPU.

What's the power setting for the GPU on battery mode? By default, it's usually set to "battery saving" or something similar for the battery mode, which means the GPU will reduce clock rate.

You should be able to find the setting in Windows' or your GPU driver's power management.

 

Sorry for the bump, but can I change the voltage and TDP level for the ULV processors such as the i7 4510U?

And is there a way to lower the IGP's clock rates and voltage?

EDIT: I read about cTDP up/down, I presume that is limited by the laptop manufacturer?

 

There is no way to change the PROCHOT value I guess?

Mine is reported as 92C, which is spot on. It throttles at 92C. But I though max temp for i7 4700HQ was 100C. So is 92C something asus has implemented in my N56JR bios?

 

+90C is still fairly high, I wouldn't recommend running a CPU at that temperature, because something around the CPU might get toasty, such as the voltage regulators.

Now if it's throttling at 70-80C, then that's just annoying.

 

That's not my point.

I thought the CPU had 100C limit, so the 92C limit must be somthing programmed into bios - if so is it possible to override it?.

Majority of quadcore laptops with dedicated GPU WILL run between 90-100C under heavy load, that is quite normal, so it bugs me that I'm stuck @ 92C and 2.4GHz CPU throttle due to that.

If it fails while temps are within intels limits - then I'll let the service centre repair it under warranty.

 

Have you tried adjusting voltage with TS7? Processor can be set to run with a TDP of more than 100W if your hardware and thermals can manage it but needs to be done in BIOS IIRC.

Limiting iGD clock can be done, for instance...
From 1400MHz


To 150MHz

What did you want to limit it to?

For voltage adjustments check if supported with HwInfo32 under CPU tab.

Probably something Asus has done. MSR can be programmed with an offset to activate temperature throttling below standard 100C.

 

OC-Freak - Intel lets individual manufacturers set an offset of up to 15C less than the official throttling temperature of 100C listed in the specs. Lucky Asus was nice and didn't go for the full 15C offset or else you would be throttling at only 85C. The only way around this is with a modified bios. As far as I know, this register is locked so you can not change this offset value after you boot up. I thought including this information in ThrottleStop would help explain why some laptops throttle so soon.

I don't have a problem with Intel including these sort of features in their CPUs but laptop and tablet manufacturers should be more upfront and honest about these things. It is impossible for a consumer to find this information from a manufacturer and I have yet to see this information published by any laptop review site. It would be interesting to call their help desk and ask them why your CPU that Intel rates to run reliably up to 100C is throttling at only 92C. You might be on hold for a while.

Edit - Intel's Specs say 100C is the "Maximum temperature allowed".

ARK | Intel® Core™ i7-4700HQ Processor (6M Cache, up to 3.40 GHz)

 

Does Throttlestop and/or XTU allow access to the voltage regulation of ULVs, such as the i5-4200U or i7-4510U?

If not, I'm sorta tempted by the Elitebook 745 with a Kaveri APU. Someone already managed to undervolt the CPU and IGP.

 

@Loney111111, if you do not have the CPU yet and want to find out about it you could try googling something like "undervolt 4200U", this particular one already mentioned in this thread.

Alternatively there is HWBOT which can provide a wealth of information. My particular interest is in how far some of these processors can be pushed.

For your query use the HWBOT search for the processor you are interested in. For instance i7 4510U


Then under CPU overclocking records, see if someone has made an submission under XTU


Clicking on the score will take you to the XTU details where you can select XTU SETTINGS and see what is adjustable and by how much in the XTU PROFILE.

 

yeah manufacturer need tobe more honest but i doubt they will...

for example, Surface Pro 3 core i3Y should be slower than Sony Vaio Tap 11 core i5Y. But in reality, Surface Pro 3 with Intel i3 almost twice faster than Sony Vaio Tap 11 core i5Y.

i think this is because on Vaio tap, the CPU only allowed to run 12 watt for 20 seconds. For Surface Pro 3, they allow the TDP to reach 12 watt forever. Anandtech say they did not get throttling in Surface pro 3 intel i3. While in my Vaio Tap 11,after 20seconds, the TDP go to 6 watt MAX and the cpu will throttle to only 1 GHz Max.

 

Soon as I receive my new Dell with i5-4210U, I'll do experiment tests. The undervolting should work and that is probably will do good things!

Could you please to post exact link? I cannot find this search window...

 

Try this: Overclocking, overclocking, and much more! Like overclocking.

 

How do you adjust the clock speed of the IGP like that? Mine throttles on my i5-4200U. Undervolting the CPU with XTU helps a little bit, because power and thermals are lower. But even if I set Intel Power Balance for CPU to 0 and GPU to 31 it still throttles, not as much but it still does. 3DMark 11 scores drop though, probably because CPU isn't running as fast as it should due to Intel Power Balance. I repasted the CPU and temps never exceed 78C even when fully taxed and maintains 2.2-2.3GHz, so at least CPU is under control. But I want the GPU to not throttle.

 

Hello everyone, I've been trying ever since I picked up my i7 Surface Pro 3 on August 1st to figure out what kind of throttling is going on here. I've been messing around with throttlestop settings but I haven't had much luck. I'm running a i7-4650U with 25W level 2 TDP, 15W rated TDP, and an 11W level 1 TDP. The long and short term TDP settings both show 25W, but the surface will only run at 17W TDP for two minutes before dropping to 13W TDP, and then another minute and a half or so before dropping to 9-10W TDP. This only happens when the GPU is also being utilized, if only the processor is being using without the GPU TDP stabilizes at 13W with the CPU running at 2.3GHz. My goal isn't to maintain that 17W TDP, its to maintain the 13W after the first drop. I've tried settings with the high performance power profile, turning off turbo boost, fixing the multiplier, messing with the intel power balance setting and nothing seems to work. Once I got it to run at 13W with the CPU and GPU being used for about 16 minutes (until I stopped the test), but after I closed it and tried again I couldn't replicate it. Does anyone have any ideas of what could help me?

 

Reading notebookcheck tests Haswell ULV processors more and more likely throttle as they have higher default CPU frequency. For example Core i5-4300U is throttle like hell and up to 222% slower than i5-4200U. Of course it is probably depends laptops to laptops, but schocking.
I am not sure anymore if it was vise to choose the half year newer i5-4210U over i5-4200U due to the higher CPU frequency, It may end up slower... Well, I guess I'll found out soon .

 

Justing6 - There was some interesting testing of a Surface Pro 3 on the TabletPC Review Forum by cbutters, including a very well done YouTube video of the problem.

Surface Pro 3 - The problems thread - Page 71

Based on his testing, it seems that data from a temperature sensor, external to the CPU or GPU, is being used to force the SP3 into low power TDP mode. When I did some testing on a 3rd Gen U CPU, the multiplier (CPU MHz) was also tied to low TDP mode so the CPU would start running like a slug at only 800 MHz. The Asus laptop I tested was running so slow that power consumption was less than the low power TDP rating. There was no 1000 MHz or 1200 MHz or 1400 MHz intermediate step. It was just wham, right down to 800 MHz and stuck there. That's why anything with a low power U CPU is not on my things to buy list. Without some thorough testing, a consumer has no idea what they are going to end up with.

Some smart guy might come up with a way around this severe throttling but at the moment, you are at the mercy of the manufacturers.

 

My Samsung NP300u1a had a ULV Sandybridge i3.

When it's plugged into the outlet, it runs at 1.3 GHz.

As soon as it hits battery mode, it locks to 0.8 GHz, even when Prime95 or MATLAB on VMware remote desktop is running. I remember putting that laptop in a freezer and letting it run for 5 minutes, and it still ran at 0.8 GHz the whole time.

Which meant Samsung used a questionable tactic to conserve battery life by making the laptop unable to handle heavy usage.

The only way to fix it was to install one of Samsung's bloatware... which turned out to be incompatible with my laptop because I swapped out the HDD with an SSD and installed a fresh Windows 7 Professional edition.

 

you can undervolt the i5-4300u on the dell e7240. Undervolt the cpu, cache, and integrated gpu.

 

I have a Yoga 2 13 and I can do all of that in Intel XTU. Unfortunately, the settings don't stick after reboot. You would need to open Intel XTU for those settings to activate again. But setting Intel XTU to open at start just doesn't work as well as setting Throttlestop to open at start.

I wish Throttlestop would have options to undervolt cache and integrated GPU.

 

Double check the version of XTU, make sure you download the latest 5.1 a couple earlier 4.x versions had the issue with it not saving profiles. The later ones (4.3, 4.4 and 5.1 do as far as I can recall).

 

Doesnt Throttlestop work for stationary computers? I suspect my motherboard is throttling my CPU but no program indicates that any form of throttling is happening. (clearly, it is)
HWiNFO tells me theres no thermal throttling, temperatures are below 70c since im on a direct-delid air cooling setup.
When im running at stock clocks theres no throttling happening, the throttling seems to begin around 4Ghz, at 4,5Ghz it takes about 3 minutes after the computer is 'rested'. If i stop the benchmark and restart it, the throttling begins almost immediately.
This happens with Prime95 and Intel Burn tests. Whats interesting is that this phenomenon isnt happening AT ALL with the ThrottleStop 'TS BENCH'! Can anyone with some knowledge tell me why?

In BIOS ive set all thermal/wattage throttlers OFF and all current limits to maximum setting possible, the CPU has a high consuption but its nowhere near my BIOS limits.
So i have the absolute cheapest motherboard (its not even Z) with overclocking capabilities (after update) from ASUS: The B85M-G (rev.1) running latest BIOS (2104), im guessing its either bad power management from the motherboard or a bad CPU.
Since most of the power regulation is done on the CPU with the Haswell i dont see how the motherboard would make such difference between a good/bad overclock tough.. please tell me if you have any speculations.

Would be great with some ideas of what to do. Should i just ignore the throttling since ThrottleStops benchmark seems to work fine?

My PC:
ASUS B85M-G rev1
4670K @ 4,5Ghz 1,37Vcore
Noctua nh-d12 air cooler direct mounted on the cpu die with coollaboratory liquid ultra paste.

Here is what the throttling looks like under Intel Extreme Tuning utility




EDIT: So after i updated bios it suddenly started to show that it throttled in intel extreme tuner AND the throttle stops when i uncheck "BD PROCHOT" in throttlestop.
Instead of being able to run 2 'steps' in intelburntest without getting lower and lower Gflops i now see 7-8 consistent steps.. then... computer shuts off..

 

Slowing it down is usually easy enough, plenty of throttling options. Speeding up is harder.

Intel power measurements are still calculated not, measured. Because of this they can be manipulated into fooling the CPU that it is running at a different power than it really is. When using this to run higher powers one must take into account the power delivery of the system. If manufacturers are designing a 12W power delivery and you start running 30W for instance, bad things may happen.

 

ThrottleStop works on desktop computers too. You say that there is no software that reports that your CPU is throttling. I am pretty sure that ThrottleStop will clearly show when your CPU is throttling but you didn't post a picture of ThrottleStop. I agree that many other apps ignore throttling. The Log File option in ThrottleStop will clearly show the kind of problem that XTU is now showing you.

The ThrottleStop TS Bench does not use the AVX or AVX 2 instructions like Prime95 and Intel Burn Test use. The TS Bench puts significantly less load on your CPU so power consumption and heat output are less compared to Prime95 or IBT.

It looks like Asus did not design your motherboard to run Prime95 on a 4670K at 4500 MHz. The load that TS Bench puts on a CPU and motherboard is more of a real world test. Very few apps are going to load your CPU as much as TS Bench does so for many users, if you can run the TS Bench without throttling, you will be fine. If you need to run Prime95 everyday then you will need to reduce your overclock or you will have to buy another motherboard.

BD PROCHOT stands for bi-directional processor hot. It is a signal path to your CPU that lets other items on your motherboard throttle your CPU. You can use ThrottleStop to disable this signal path which blocks these messages so the CPU will try to continue to run at full speed but this can be dangerous. If some component on your motherboard is under designed then you could permanently damage your motherboard. It looks like your CPU is throttling for a reason. Your motherboard is not designed for the rigors of Prime95 when overclocked.

 

I know this thread is about CPUs, but I've been looking at an Elitebook 840 G1, partially because two users confirmed that they were able to OC the i7-4600U to a stable 3.4 GHz for two active cores through using the XTU, which makes it almost matching an i7-4600M's 3.5 max turbo for two cores.

I'm not sure if any other laptops allow ULV overclocking.

The only issue is that the Elitebook 840 severely throttles the GPU with stock settings at very low operating temperature, possibly either due to a very low thermal throttling headroom, or HP decided to limit the GPU's power consumption.

http://forum.notebookreview.com/hp-...-800-series-owners-lounge-33.html#post9739967

Notebookcheck review also confirmed that the GPU was throttling and thus causing micro-stutter when playing Dota 2, and system temperature was only 72C. The i7-4600U only throttled from 2.9 GHz to 2.4 GHz (base clock rate is 2.1 GHz).

Review Update HP EliteBook 850 G1-H5G44ET Notebook - NotebookCheck.net Reviews
Cropped image from notebookcheck:



If I buy this laptop, I'll have to decrease the GPU's clock rate. Strong CPU potential with a crippled GPU...

 

Looks like youre the creator of ThrottleStop? I might have found something that can be useful to you.
My throttling doesnt show up in ThrottleStop or HWiNFO. But it shows up in intel extreme tuning utility. Ive attached a screenshot for you, i tought you might wanna 'fix it', or whatever.
Unless im missing something obvious.

I figured the throttling must be happening because of my motherboards voltage regulators. the mosfets.
They dont have any heatsinks like other high-end motherboards have. what do you think?

Moving on to a different topic: Any way to make ThrottleStop start in system tray on windows start up? When i select 'start minimized' it just starts in taskbar.
On windows (win7) startup i can find it in processes but i cant see it anywhere else.

Screeenshot showing throttle not detected http://i.imgur.com/AJTgFaB.png

 

Rhoaguy - Your screen shot shows that you have your 4670K overclocked to 4700 MHz. Intel XTU reports that your CPU is fully loaded and running at 800 MHz, ThrottleStop shows that your CPU is fully loaded and running at 800 MHz and HWiNFO also shows that your CPU is fully loaded and only running at 800 MHz. All 3 monitoring programs are telling you that your CPU is running at a fraction of its rated speed and a fraction of its overclocked speed. That's throttling. All 3 programs are clearly showing you that your CPU is throttling.

Edit - My mistake. Your screen shot has XTU reporting that your cache is running at only 0.80 GHz (800 MHz). XTU shows the CPU core is still running at 1.70 GHz. That's a mistake. The CPU core is only at 800 MHz. Since throttling just started, XTU is probably a little slow to react. ThrottleStop and HWiNFO are reporting your CPU MHz correctly.

You are not using any of ThrottleStop's features to try and disable this throttling. If you unchecked the BD PROCHOT box and adjusted the Set Multiplier feature, your CPU would probably start running a lot faster. If the voltage regulators on your motherboard are not being cooled properly, using ThrottleStop to overcome this throttling could permanently damage your motherboard so you need to fix this problem first.

Did you follow the second post in this guide to add ThrottleStop to your start up sequence using the Task Scheduler? That method works in Windows 7 and Windows 8/8.1.

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

Unfortunately, ImageShack deleted all of the pictures but hopefully there is enough information there for you to add this to the Task Scheduler. You need to choose the "when I log in" option so when ThrottleStop starts, it has a task bar where it can minimize the ThrottleStop icon too. If you start ThrottleStop before you log in, you will not have access to the user interface.

 

Just let you know guys, this thing is working great with 4th gen ULV (i5-4210U) and found it very useful!

Prime 95 CPU frequency;
2100MHz without Throttlestop,
2300MHz with -80 offset voltage,
2400MHz with -80 offset voltage + Intel Power Balance 31 to CPU and 0 to GPU.

I'm very satisfied, laptop stays absolutely quiet and super fast... Heck, what if I'll do re-pasting with Coolaboratory Liquid Pro?

Update;
Repasting is done, fan won't work louder than a HDD after half hour Prime95 ;

 

I was under the impression that ThrottleStop would show throttling by 'Cmod' and 'Chip' getting lower values than 100.0.

I followed the guide to add ThrottleStop to the sheduler but it didnt work, until recently.. it starts but it doesnt show up anywhere else than in processes under task manager. Im fine with this since i can start TS manually whenever i want to change settings.

 

@Atom Ant, would you try running this 3 runs at problem size 20000 using 2 threads on separate physical cores and show TS with TDP throttling, Level 1 settings, Level 2 settings and max temperatures. Thanks

 

Only running Prime 95 was not difficult to set the max turbo (2.4 GHz) at CPU side. But when the powerful discrete GPU was working too and generating heat the CPU dropped frequency back to 1.7GHz. This caused significant FPS loss in GTA 4 and lots of headake how to solve this problem. Fortunately, I've found the solution again and here in my following posts, I've provided a guide how to do and keep max CPU frequency even in these extreme load situations using Throttlestop.

Hope it will help for all of you who has 4th gen ULV CPU .

 

Rhoaguy - Now I understand. Clock modulation and Chipset clock modulation are just two types of throttling. Some laptops disable Intel Turbo Boost and some reduce the CPU multiplier and some use the BD PROCHOT signal path to trick the CPU into thinking it is running too hot which forces it to thermal throttle even when it is not hot at all. Laptop manufacturers have access to a wide variety of methods to make their laptops run like slugs. On my Y510P and on the new Y50, Lenovo disables Intel Turbo Boost by changing the multiplier request register in the CPU to 24. ThrottleStop does a pretty good job of handling most of these problems.

If you want ThrottleStop to start when you start Windows then I suggest using the Task Scheduler and follow each step in the guide exactly. If ThrottleStop starts up but you can not see the icon anywhere then make sure you followed this step.

http://i.imgur.com/cIKnIxZ.png

Can you give that one more try? There should be enough information in these Windows 8 screen shots that I posted.

TS6_Win8_Manual

Atom Ant - It is great to see that Dell did not kill the performance of your U CPU. I have been negative about the low power U CPUs but the real problem is not the CPU, it is how some manufacturers have locked these down so they can not be adjusted using ThrottleStop. There should be no need to disable SpeedStep in the bios. Your screenshot showed that EIST (SpeedStep) is enabled with the CPU running the 24 multi. The Set Multiplier feature depends on EIST being enabled.

After you raised it to TDP Level 2, is it possible to increase the Set Multiplier value so you get to use some Turbo Boost too or am I being too greedy? Maybe after all that complaining I did a few years ago, Dell's guys in the white coats finally decided to listen.

Originally I was going to complain when you posted your screenshot above in the ThrottleStop Guide thread without including a picture of ThrottleStop. I was a little disappointed but you have redeemed yourself with that pic in the Latitude 15 thread. After seeing numbers like that, users are going to be lined up downloading ThrottleStop 7 so they can get the most out of their new Latitudes. Thanks.

Dufus - Do you think writing a little tool that put the magic number 0x80000002 in FED15F50 could help out the U CPUs? I wish I had one of those gimped SP3 tablets for testing purposes.

 

You mean to do this?;



Yes, now I can set the values even further than 2.4GHz, but it won't do the trick. Soon CPU starts working, all the four threads back to 2.4GHz... Do you know other trick? What is that ppo something in TPL manu?