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    The ThrottleStop Guide

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by unclewebb, Nov 7, 2010.

  1. unclewebb

    unclewebb ThrottleStop Author

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    http://ark.intel.com/products/81015/Intel-Core-i7-4510U-Processor-4M-Cache-up-to-3_10-GHz

    The Intel Core i7-4510U has a 15 Watt TDP limit. That is exactly what ThrottleStop is showing. Your CPU is throttling down to the 15 Watt TDP level.

    Some laptops use multiple throttling methods. ThrottleStop can adjust the power limit registers in the CPU but there is a duplicate set of registers within the chipset that can also be used for throttling purposes. Long term, I don't know if it is possible to take your CPU beyond 15 Watts.

    Here is the first post in the Dell 11 forum:

    He is not going over the 15W TDP limit long term either.

    Did you try un-checking the Clamp option? Did you try using the Intel Power Balance option with the CPU set to 31 and the GPU set to 0? Without access to some relevant hardware, there is nothing more I can do.

    Maybe some people can take up a collection and buy Dufus a device with a U CPU. He is the only one I know that might be able to get beyond the 15 Watt limit. Neither one of us want to spend our own money on a device that is severely limited like the U CPUs tend to be.

    Your screenshot shows that your reduced multiplier has decreased total MHz by about 6% when stress testing with the CPU fully loaded. A 6% reduction is not seriously bottle necking anything. The bottle neck is that you have a dual core CPU. A couple of more cores would probably help more than a tiny percent increase in total MHz. Can you run ThrottleStop with the Log File option selected while gaming for half an hour or so. I am just curious.
     
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  2. vnitro

    vnitro Newbie

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    Dell venue 11 has a Core i5 4300Y 6W TDP, he unlocked the TDP restriction and managed to get 11W.
    Wprime is simple computation and doest use much power, hence 2.6ghz. Have a look at underclocking at heavier loads (under 2ghz). While gaming (CS Global Offensive) it goes down to about 2.4ghz.
    [​IMG]

    For the first 40 seconds after loading the game it runs at full 2.8Ghz with 200fps average (min 174), then throttles down to 2.4 ghz and 170fps average with drops up to 120). Thats pretty noticeable fps drop.

    Before bashing ulv processors here's a comparision with my desktop (Phenom ii x4 965BE @ 3.7Ghz + HD7750) which gives around 180fps average and other regular light load chores are much faster one my laptop than on quadcore desktop and audio encoding is faster "for the first 50 seconds" :D.

    Here's a screenshot of CPU in HWinfo, the power limits are unlimited, its locked in the motherboard. Ive seen many people change the power using xboot by changing a single variable which corresponds to the tdp lock in bios. Is there anyway i can change this through Throttlestop ?
    [​IMG]

    Here is the screenshot of the bios TDP page
    [​IMG]

    Here's the screenshot of bios code, can you make anything out of this ? like which address to modify to change the value from 15W to a higher value ?

    [​IMG]

    For your reference
    Dell venue 11 Pro i5 overclockED !
    TDP and Power Limiting (Haswell)
     
  3. languidsting

    languidsting Newbie

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    [​IMG]

    When will it possible in the 4th generation?
    I've been waiting for this feature.
     
  4. unclewebb

    unclewebb ThrottleStop Author

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    Sorry for bashing the ULV. My point is that Intel makes much faster mobile CPUs. At the moment, many ULV devices are limited by the low TDP. Comparing your 15W CPU to a Core i5-4300Y is comparing apples to oranges. The Core i5-4300Y might have originally started life as a 15W CPU. Going from 6W TDP back up towards a 15W TDP might be a lot easier to do than getting your CPU over the 15W long term barrier.

    I am still interested in seeing a ThrottleStop Log File from a long gaming session. Half hour to an hour is fine.

    HWiNFO is reading the same CPU registers and showing you the same information that ThrottleStop is showing you. HWiNFO shows Power = Unlimited and Time = Unlimited. That just means that the lock bit is not set on that register. If you look in the ThrottleStop - Turbo Power Limits window and go down to the Package Power Limits section, you can see that ThrottleStop shows the Lock box is clear. That means that this register is not locked but that is all that means.

    ThrottleStop lets you adjust your power limits in this register to values higher than 15 but it is obvious from your testing that you are still limited to 15 Watts. That means there is another register or multiple registers that are still limiting your CPU.

    In your bios, have you tried to set the Config TDP to Level 2 and then lock it to this level? In theory, if you could lock the CPU into TDP Level 2 then it would be problem solved. Unfortunately you can lock the register in the CPU but there is another register in the chipset that would also need to be locked. And then once you find and get this one locked, both of these settings can be overridden by another setting. Kind of like a game of whack a mole. Intel has provided manufacturers multiple ways to keep these CPUs at their long term TDP rating.

    Edit - Does your setting of 128 seconds result in any advantage compared to 64 seconds? The reason I ask is because an unlocked bios is a good thing but for some items, the bios might give you the ability to set values but the CPU will ignore some values if they are outside its acceptable range. When you go over the maximum, I am not sure if the CPU will use the maximum possible time value or if it will simply use the default value.

    Edit #2 - On the things to do list is adding control of the CPU's PL3 register to ThrottleStop. My 4700MQ does not use this register but some of the ULV CPUs probably do. If it is not locked in the bios then adjusting it higher might help out.

    If you have a 4th Gen CPU, ThrottleStop will show you this window.

    http://i.imgur.com/jS95lSU.png

    Depending on the CPU model you have, how the bios is setup and the device it is installed in, those adjustments might not increase performance as much as you would like them to.
     
    Last edited: Jun 1, 2015
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  5. unclewebb

    unclewebb ThrottleStop Author

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    I updated the Turbo Power Limits GUI tonight to make room for the new Power Limit 3 (PL3) adjusters.

    [​IMG]

    Hopefully I have time tomorrow to hook it all up.

    It will be interesting to see if any of the ULV processors are using this throttling method and if adjusting the PL3 register might help out.
     
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  6. vnitro

    vnitro Newbie

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    There are 28W processors such as 4558u and 4578u which belongs to the same series as my processor, so its possible my processor is limited to 15W just for marketing purposes. The one thing thats motivating me to unlock the tdp is the fact that my laptops cooling can easily withstand 20W with temperatures not more than 80C. and at 20W, i can get atleast 25% more juice.

    As you can see, Configurable TDP lock is greyed out, in the bios code i found it has 3 values 0x00 = nominal, 0x01 = down and 0x02 = up. I tried changing it using xboot to 0x01 and 0x02 but its still locked at nominal. May be im missing something else.

    I believe everything is locked in the chipset, i have access to the registers but dont know which registers correspond to what. Is there anyway i can get a documentation for MSR ? Are MSR's same for the same chipset even if its from a different manufacturer ?

    Stock turbo time limit was 28, bios allowed maximum is 128. Does matter what value i set above 128 it still the same, but going lower than 28 will reduce turbo time.

    Btw, can i overclock my ulv cpu to 3.1ghz ? like in desktop versions where u can overclock till max turboboost

    Pl3 in Throttlestop ? thats Awesome. Cant wait Hope that works for me. TDP and Power Limiting (Haswell) he uses PL3 to trick his 47W processor to go up to 140W.


    45 seconds in to the game
    2015-06-01 15:00:43 28.00 71.6 100.0 100.0 0 78 0.9734 17.2
    2015-06-01 15:00:44 28.00 68.8 100.0 100.0 0 77 0.9734 16.9
    2015-06-01 15:00:45 28.00 70.1 100.0 100.0 0 78 0.9734 16.8
    2015-06-01 15:00:46 28.00 72.0 100.0 100.0 0 76 0.9734 17.1
    2015-06-01 15:00:47 27.76 67.6 100.0 100.0 0 75 0.9232 16.5
    2015-06-01 15:00:48 25.60 69.0 100.0 100.0 0 73 0.9280 14.9 (TDP Throttle)
    2015-06-01 15:00:49 25.78 68.5 100.0 100.0 0 75 0.9252 14.7
    2015-06-01 15:00:50 25.78 69.1 100.0 100.0 0 75 0.9252 15.1
    2015-06-01 15:00:51 25.68 71.9 100.0 100.0 0 76 0.9252 14.9
    continues the same
     
  7. languidsting

    languidsting Newbie

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    No, i want this.
    You gave a positive answer.
     
  8. tamas970

    tamas970 Notebook Guru

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    True if the integrated graphics is used, maybe also true with discrete graphics+Haswell CPU. However, with Broadwell-U (i7-5600U)+discrete graphics the worst I've seen was ~2.8GHz, which is only about 12% loss.
     
  9. unclewebb

    unclewebb ThrottleStop Author

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    I wish I had some documentation from Intel for this stuff but I don't. I have to endlessly search forums for tidbits of information and then I try to put it all together into a useful feature or two which may or may not be useful to everyone. Posts by Dufus have always been an incredible source of quality information. :)

    The MCHBAR refers to the chipset so you can use RW Everything to see what values are in those registers.

    [​IMG]

    My laptop with a 4700MQ does not use either 0x59A0 or 0x59A4. They are both set to 00000000. Lenovo locked the MSR registers in the CPU instead.

    Once those registers have been taken care of, then it is time to look at PL3 and after that, it is time to work over the Embedded Controller (EC).

    Being able to adjust PL3 might fix your throttling problem but probably not. I just want to see what is hiding in that register on the ULV CPUs. It is just another throttling method that needs to be investigated. I am thinking that there is probably some device out there somewhere that is using PL3 for some throttling purpose. Even if PL3 does not help you, it will probably help somebody.

    Dufus did not adjust PL3 to trick his processor to go faster. His trick involved modding the EC. That is beyond me or ThrottleStop.

    I agree that adjustable power limits for each profile like the 1st Gen Core i CPUs had would be a great feature for the newer CPUs. The problem is I only have a limited amount of time for this project. I work full time so at the most, I only spend a couple of hours a week programming ThrottleStop. After the PL3 feature is added, it might be 6 months or longer before I get around to adding any new features. During the summer, I would rather be outside.

    The latest U CPUs are much improved. The 2nd and 3rd Gen U CPUs did nasty things like throttle down to 800 MHz for extended periods of time which killed performance. That is the source of my negative feelings towards the ULV. Looks like the ugly child has finally grown up. :)
     
  10. vnitro

    vnitro Newbie

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    Is it RWeverything ? How to access mchbar using it ?

    btw I managed to change boot tdp from nominal to up (2.6ghz, 25w) and config tdp to level 2, but still it gets throttled at 15W. I guess its time to quit and be content with what I have.

    And setting cpu power ratio to 31 stopped downclocking, now it stays at 2.8ghz while playing but with no improvement is fps which is weird also the intergrated gpu throttles to 150mhz, but I believe its not a problem as my discrete gpu is in charge of gaming, am I right ?
     
    Last edited: Jun 3, 2015
  11. languidsting

    languidsting Newbie

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    i see...
    end of the year, I hope to add this feature.
    thank you.
     
  12. Vano3408

    Vano3408 Newbie

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    Dear bsoft, I have also T300Chi with M 5Y10c and suffering from low performance when power adapter plugged in. I want to have max 2.0Ghz on power, did I understand you correctly that I can get this working if will uninstall DPTF driver ? Or I also must install ThrottleStop and make respective settings for max performance ? What exact settings I must set ? Sorry for my questions, but I am a bit newbie in this subject.
    Thank you in advance.
     
  13. jotm

    jotm Notebook Evangelist

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    Hello everyone,

    I was wondering whether it's possible to reset the short turbo timer on Sandy Bridge/Ivy Bridge processors by software means?

    If it were possible, we may be able to get the CPUs to run at the higher TDP limit indefinitely, which would be great :)

    Has anyone looked into it? Does anyone have any ideas?

    Thanks!
     
  14. D2 Ultima

    D2 Ultima Livestreaming Master

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    What are you asking exactly?

    They already can, unless your BIOS doesn't want you to.
     
  15. bennni

    bennni Notebook Evangelist

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    Thank you so much for this software!

    I run an E6410 and due to the AC charger adapter not being liked by the BIOS, it kept throwing up " The AC power adapter type cannot be determined. Your system will operate slower and the battery will not charge" warnings. Further to this, the CPU multiplier was stuck at the lowest x7 frequency multiplier. Being stuck at ~935 MHz (Even though there are four physical cores) is painful and ThrottleStop successfully solved this problem. Love the option to make profiles and set CPU frequencies too.

    Thanks again - you totally saved my notebook from being sold off and replaced unnecessarily.
     
  16. unclewebb

    unclewebb ThrottleStop Author

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    You're welcome. I think this little program has probably saved quite a few Dell Latitudes from the scrap heap. It wasn't just one model that had issues. Dell should have cut me a cheque but instead they banned me from their forums because they didn't want me to talk about this throttling issue. That speaks volumes about how they handle problems.

    The famous ThrottleGate paper by Randall Cotton chronicling the woes he was having with his Latitude E6500 really motivated me to come up with a simple solution. Here is his testing and throttling results if you are interested.

    http://www.mediafire.com/view/1gnwmozzy0w/throttlegate.pdf

    I had no idea I could turn an afternoon project into a multi-year obsession. :)
     
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  17. bennni

    bennni Notebook Evangelist

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    Yes, what suprised me most of all was that I found various reports which matched my experience dotted around but nothing official from Dell to explain why this was happening. Of course, the suggestion to immediately buy a new AC adapter is a safe bet and is the official response that I've seen from Dell (With the CPU downclocking never adequately addressed). Apparently there's a component inside the AC adapter that is irrevocably altered under certain circumstances and will then subsequently trip the 'adapter warning' in the BIOS. Sounds reasonable but in my case the charger is very recent and otherwise works perfectly. The input and output levels have been tested and are all correct, so it seems this component inside the AC adapter is somewhat fragile and renders an otherwise adequate charger into a CPU-downclocking nightmare. Fortunately, ThrottleStop has remedied this concern!

    Thank you for the linked report, it has been interesting to read. Seems a curiously conservative approach to heat management.
     
  18. hslayer

    hslayer Notebook Guru

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    Hello there @unclewebb,

    There are many alienware 15/17 owners who are currently suffering from heavy cpu throttle because of the poor bios made by dell. You can see more detail in this link

    http://forum.notebookreview.com/threads/why-is-my-alienware-15-cpu-throttling-to-800-mhz.777144/

    Now if we were to use throttlestop, will it work as temporary fix to our problem until dell decide to release a bios update that will address this throttling issue? It just ridiculous how the cpu gets throttle all the way down to 800 mhz and stay there for good 5+ mins.

    And if throttlestop can be beneficial, please let me know which settings I should be using in throttlestop.

    Thank you for everything you do for this forum.

    Hope to hear back from you soon
     
  19. unclewebb

    unclewebb ThrottleStop Author

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  20. Mindfull

    Mindfull Newbie

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    I have just installed Throttlestop v6.0 in my laptop and have some queries.

    Is this the right place to ask ?
     
  21. Papusan

    Papusan Jokebook's Sucks! Dont waste your $$$ on Filthy

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    Yeeees :)
     
  22. Mindfull

    Mindfull Newbie

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    Hi Papusan - Thanks for the reply.

    It's an upgraded Dell Latitude D520 running a T7600G and Throttlestop and since cpu installation I've had a couple of BSODs.

    Works AOK at 2.66GHz but I just wondered if it's Throttlestop or the Dell Bios that's causing the BSODs.
     
  23. unclewebb

    unclewebb ThrottleStop Author

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    The multiplier and voltage should be adjustable on a T7600G when using ThrottleStop. If you are getting BSODs, that is usually a sign that the CPU needs some more voltage. With the mobile CPUs, you can use a VID voltage setting up to about 1.50 volts.

    The best way to overclock is to start with too much voltage and then slowly decrease it while stress testing. I like Prime95 or wPrime or some HyperPi. As you decrease voltage, when you lose stability or you get an error, that means you need more voltage.

    ThrottleStop is pretty reliable so hopefully with some more voltage, you will be OK. If you need some help, post a screenshot of how you have ThrottleStop setup.

    Edit - Here's a post I did a long time ago.

     
  24. Mindfull

    Mindfull Newbie

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    [​IMG] Thanks UW that's just what I needed to hear. The BSODs have gone now I've increased the voltage. One question how do I know if I've got enough volts ? Seems OK now.

    One thing has changed since I changed the voltage. Please see the picture above.

    Does this mean windows now sees only a 2.33GHz cpu and not an ocd cpu like before?
     
  25. revive

    revive Notebook Enthusiast

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    Hi guys, is there a way to prevent the 4980hq in an Alienware 17R2 from throttling down to 2,8GHZ while playing Witcher 3? (I think its PL0 throttling, its definetly not PL1 nor 2.)
    It looks like the CPU wont get enough power if the 980m need some power. Hope there is a solution otherwise i think about returning the machine back to Dell because it is obviously not working properbly.
     
  26. WJamesLord

    WJamesLord Notebook Geek

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    Sadly, Dell and its Alienware child company continue to produce laptops with throttling issues. I've got to believe that word of this issue is circulating around the net - yet the trend continues. Sooner or later, this issue has to hurt Dell's bottom line.
     
  27. unclewebb

    unclewebb ThrottleStop Author

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    Run something simple like 1 thread of the built in TS Bench so there is some load on your CPU and then see what speed ThrottleStop shows while that test is in progress. It will confirm what speed your laptop is running at. Microsoft is reasonably good at writing operating systems but not so good at reporting CPU speed. Even Windows 8.1 still has issues so I would ignore any GHz number you see in the Windows - Control Panel - System box.

    Why did you stop at 2.67 GHz? These CPUs are quite capable of running reliably a lot faster than that. If you have a T7600G, you should be able to click on the ThrottleStop - UNLK button to unlock your CPU and take the multiplier and VID voltage much higher. These early 65nm CPUs were built like tanks and were very durable so no worries. 3.2 GHz for 24/7 use is doable as long as your cooling system is up to it.

    sirbevo posted some excellent results when using ThrottleStop on his Alienware 17.

    http://forum.notebookreview.com/thr...2-owners-lounge.770314/page-127#post-10023890

    A 4980HQ is a 47 Watt processor so some throttling when heavily loaded should be expected. It just shouldn't be throttling down to 800 MHz while gaming. ThrottleStop cannot solve all of Alienware's problems but I am pretty sure it can fix the 800 MHz issue.

    Edit - FYI, when shopping for a new laptop, here is something to keep a close eye on.

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

    That is a screenshot from an Asus G771JM.

    http://ark.intel.com/products/78934/Intel-Core-i7-4720HQ-Processor-6M-Cache-up-to-3_60-GHz

    For this CPU, Intel set the thermal throttling temperature to 100°C. Asus decided that was too much so has used a feature provided to them by Intel and reduced the thermal throttling temperature down to 85°C instead. What is the result? Significantly reduced performance during normal operation. I am not talking about reduced performance during some sort of extreme stress test like Furmark + Prime95. This laptop continuously throttles along at half of its rated speed due to this problem while playing an off the shelf game that is not even close to utilizing the entire CPU.

    ThrottleStop cannot be used to fix thermal throttling like this. A laptop would need to use a modified bios so the throttling temperature can be set back to the Intel specification.
     
    Last edited: Jun 15, 2015
  28. revive

    revive Notebook Enthusiast

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    If it would only throttle down to 3.5GHZ or whatever it wont be that hard for me, but nearly periodically it throttles down to 2.8GHZ wich is the non Turbo Speed. I tried these settings but i dont know if i missed something because it still throttled from time to time. Even if i use the 1024 bench in throttlestop it just stays at round about 3.5GHZ. It looks like it only throttles if the Graphic card kicks in. :/ I really like the Notebook and would like to keep it. Hope there will be a reason in some time, hopefully from Dell otherwise from you i hope ;)
     
  29. unclewebb

    unclewebb ThrottleStop Author

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    Can you post a screenshot that shows how you have ThrottleStop setup? Clear the BD PROCHOT box, check Set Multiplier and set that to the maximum value and then click on the Turn On button. Leave SpeedStep checked and C1E is not important. Are you under volting your CPU? Reducing voltage, reduces power consumption and that can increase performance in one of these limited CPUs.

    Go do some gaming and check off the ThrottleStop - Log File option so you have an accurate record of how your CPU was running and copy and paste that info to www.pastebin.com

    Turn on GPU monitoring in the ThrottleStop Options window before you start logging so that information is included.

    That link I posted above shows decent performance when using ThrottleStop but the Heaven benchmark is not overly demanding. I am not sure what happens when trying to play an actual game.
     
  30. E.D.U.

    E.D.U. Notebook Deity

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    You'd think that right? But my first experience with Dell and throttling was way back in 2010 with the Studio XPS1645. Even the XPS M1530 I had before it notoriously, thermal-throttled due to overheating. My 1645 was thermally and current throttled. At that time, Dell reluctantly alleviated the current throttle with a higher watt PSU that should have accompanied the system from the start! Then we were lucky to have a BIOS version that increased the thermal cap. However, that really was the last draw for me with Dell. The only reason I could make anything out of the laptop after that was thanks to such great people like Unclewebb and his TS application! I still have as far back as TS version 2.54 :eek:. My, has the application grown since!

    My 1645 died months back due to what I assumed was heat exhaustion. Now throttling issues just seem more widespread and Dell (and even their Alienware line) are still leading the pack. "Gimped laptops for all!" SMH. Can't thank Unclewebb enough. You da man :)!
     
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  31. unclewebb

    unclewebb ThrottleStop Author

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    Thank you E.D.U. When I first started on this project, I thought if throttling could be easily monitored and fully exposed that manufacturers would have nowhere to hide and they would be forced to fix their laptops. I must have been young and foolish back then. Only Dell would think that a 90 Watt adapter was adequate for a 1st Gen Core i7 and ATi GPU. They were wrong and even the replacement adapter was not adequate to fully power the XPS1645 when stress testing. The Dell rep asked me to sit in on a conference call but I declined. I wasn't interested in signing a NDA agreement and being muzzled. The rep actually called this a con call. Coincidence I am sure.

    Anyway, throttling laptops are alive and well. Intel has created so many different throttling options that manufacturers can pick and choose a wide variety of methods to throttle their under designed laptops however they like.

    Keeping the dream alive since 2010. TS FTW!!
     
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  32. D2 Ultima

    D2 Ultima Livestreaming Master

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    You know Unclewebb I think I'd like to come here and wholly recommend that we do have a toggle-able option in TS8 for automatically applying TS8's settings on launch (for TPL and such). It'd be quite an interesting feature to allow it to enter a read-only on launch state, and only apply when you want to apply. Instead of a "ask on first startup" thing, maybe you could simply add it to the options menu and leave it set to that behaviour by default, and if people want to use it the way it's currently set they can change the setting? That way people who know what they want can access it, and people who don't know what they're doing with adjusting TPL etc or are using XTU don't need to worry.

    What do you think? It's not a huge thing, and I've been thinking about it for a while since we spoke about it in the P570WM thread, but I think this is the best way to do it. Maybe include it in a later beta with any more changes/bugfixes you might have.
     
  33. hslayer

    hslayer Notebook Guru

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    @ unclewebb @ D2 Ultima

    so I recently changed my settings to prevent thermal throttling to kick in and downclock my cpu to 800 mhz
    currently i am running

    4710hq/980m

    everything in throttlestop is default except
    i unchecked BD PROCHOT and C1E

    turbo boost power max 58w
    turbo boost shower power max 58w
    processor current limit 112.00A
    Dynamic CPU voltage offset -60mv
    37x/36x/35x/35x

    Now with this setup, I didn't notice any thermal throttling but now I get power limit throttling and when this kicks in, my cpu downclock all the way down to 800 mhz and stay there.

    how can I stop this power limit throttling?

    thank you
     
  34. D2 Ultima

    D2 Ultima Livestreaming Master

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    These two lines are pointless. You WILL be limited to 47W. Maybe you can get 58W for 2.5 minutes (this depends on each user's system for all machines except clevo's; some get 47W max, most get 58W for 2.5 minutes then drop to 47W), but that's not a whole lot.

    You undervolt as much as you can and HOPE that whatever you're doing doesn't exceed the power limit of the CPU. As for why it locks to 800MHz after power limit throttling? I couldn't guess... maybe try enabling C1E? See if that lets it clock back up after power throttling.
     
  35. unclewebb

    unclewebb ThrottleStop Author

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    Did you check the Set Multiplier option? Is that set to the maximum value? A screenshot of ThrottleStop and a ThrottleStop Log File tells me what I need to know so I don't have to ask endless questions.

    I spent hours trying to help a person yesterday and then he finally showed me a screenshot and that is when I noticed that his Asus G771JM laptop was set to an 85ºC throttling temperature by Asus. With that limitation locked into the bios, there is nothing that ThrottleStop can do about that.

    I need to see a ThrottleStop Log File while you are gaming and it should be at least 15 to 30 minutes. Copy and Paste that data to www.pastebin.com or attach it to your post. This gives me ideas about what is triggering the plunge to 800 MHz and I get to see how long it stays there before it recovers, if it ever recovers, etc.

    No laptop should drop down to 800 MHz unless there was a catastrophe and the heatsink just fell off of the CPU. It should never happen during normal operation. If I paid that much money for a supposed gaming laptop that was performing that poorly, I would immediately ship the thing back to Dell.

    @ D2 Ultima - A lot more options for the TPL window is on the long term things to do list. I want to add power limit adjustments for each profile and I will keep your idea in mind if I ever get around to this next work over. It probably won't happen until the fall or later. Too nice out today to be programming.
     
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  36. unclewebb

    unclewebb ThrottleStop Author

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    I have not heard anyone bring up this topic so I decided it was time to do a performance comparison between Intel XTU and ThrottleStop. I used a simple single threaded benchmark program called Super Pi Mod. The faster a computer can calculate a million digits of PI, the better. For the comparison, I did 5 tests with Intel XTU minimized to the system tray and then I did 5 Super Pi Mod tests with ThrottleStop minimized to the system tray. I left ThrottleStop in Monitoring mode so it was not actively helping out in any way. I took a screenshot of the best run for each program.

    Intel XTU

    [​IMG]

    10.927
    11.003
    10.918
    10.836
    10.932

    Average = 10.923

    ThrottleStop Results

    [​IMG]

    10.210
    10.178
    10.159
    10.206
    10.209

    Average = 10.192

    Based on those results it is obvious that leaving Intel XTU running on your computer is not a good idea. Even when it is minimized to the system tray and not doing anything, it is still significantly reducing the performance of your laptop.

    I did some more testing to try and find out why Intel XTU is such a pig. When ThrottleStop is being used, my 4700MQ has no problem using the full 36 multiplier for the majority of this single threaded test. When XTU is running and minimized to the system tray, it keeps one core active the majority of the time so the benchmark spends a lot more time using the 35 multiplier and a lot less time using the 36 multiplier. Conclusion - Intel XTU can make a laptop run slower!

    Imagine that.

    I understand that if you need to use Intel XTU to unlock some feature in your CPU that ThrottleStop does not have access to then by all means, use XTU. After that though, exit Intel XTU as soon as you can. Driving a high performance car with a boat anchor tied to the bumper is never a good idea.
     
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  37. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    Does Throttle Stop work if you are using the Intel Dynamic Thermal Framework Driver and not doing manual overclocking to keep the processor running at full speed and if yes, what settings do I need to do change? I am a n00bie to Throttle Stop
     
  38. hslayer

    hslayer Notebook Guru

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    Here you go,

    I am not even sure if my overclock and undervolt were even working or not, because my cpu never went above 3.2 ghz (even though I set multiplier to 37x) How can I make sure that my settings are working?

    As you can see in the log, my cpu will first throttle down to 2.5 ghz from 3.2ghz and hit below 1 ghz.

    http://pastebin.com/pDNVGZya

    my settings

    http://imgur.com/uTV9UKz
    http://imgur.com/Zb4qPru
    https://imgur.com/uTV9UKz,Zb4qPru,zHWV4Ez#2
     
  39. unclewebb

    unclewebb ThrottleStop Author

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    I am not sure what the purpose of the Intel Dynamic Platform & Thermal Framework Driver is. With a big long name like that, I am suspicious already. If this driver interferes with your CPU running at its full Intel rated speed then I would delete that driver and see what happens to performance. If you are using that driver, I am not sure if ThrottleStop will work correctly. Do some testing with and without that driver and post some results.

    @ hslayer - The first problem I see is that ThrottleStop is in Monitoring mode. You have to click on the Turn On button.

    The next problem I see is that your CPU is barely above idle but ThrottleStop shows that TDP Throttle is lit up. That is most likely a problem with your bios. The 4710HQ is a 47 Watt CPU but your screenshot shows that it is being severely throttled even though it is only at 8.9 Watts. Your laptop is defective. Return it to Dell. There is a hardware problem or a problem with the bios. Either way, your laptop should not have been shipped in this state.

    What does the Limit Reasons program show when this is going on?

    Edit - For comparison sake, here is what a properly functioning 47 Watt CPU should look like.

    [​IMG]

    All 8 threads are fully loaded and they are all using the full 34.00 multiplier which is the maximum available multiplier when 4 cores are active. The CPU is operating just under the 47 Watt TDP limit so there is zero throttling and TDP Throttle is not lit up. The CPU is also not thermal throttling which means Lenovo included a heatsink and fan that is adequate for the job. I am sure some fresh paste would improve the temperatures but it is not immediately necessary since the CPU is already running at its maximum possible speed. I just don't understand why manufacturers continue to ship laptops that are not able to run at their rated speed and power levels.

    Edit - In the ThrottleStop TPL window just use default settings. Set Package Power Long to 47, Package Power Short to 58 and the time limit to 28 seconds. Do NOT check the Clamp option, ever. Maybe the default settings will help out.
     
    Last edited: Jun 16, 2015
  40. revive

    revive Notebook Enthusiast

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    I just played a bit Witcher 3, the logfile is in the first link.
    The second link is a test with the TS Benchmark 1024M + furmark to get the system at 100% load.
    The last link is the TS setup Screenshot.

    http://pastebin.com/mvf23M8A
    http://pastebin.com/XXqaTuje
    http://imgur.com/31VD0nC


    At the screenshot TS is not turned on, but while i tested it was, just for your info. :)
    I think the power consumption from the system is someway locked at the bios so i think i need help from dell :/
    Maybe i try to send it back because it is not working properbly.
     
  41. D2 Ultima

    D2 Ultima Livestreaming Master

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    Good luck with that... you'd likely do much better by returning it for a Clevo.
     
  42. revive

    revive Notebook Enthusiast

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    That was what i thought if they can't help it. Can the Clevo Barebone handle the 4790K? I'm from Germany so Sager is out. :p
     
  43. D2 Ultima

    D2 Ultima Livestreaming Master

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    Yes, it can. Easily. You may need to change the thermal paste from the stock factory repaste job, but it definitely can do it.
     
  44. hslayer

    hslayer Notebook Guru

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    I changed stuff like what you suggested and here is my new result. I also put a wooden block underneath my laptop to create better airflow.
    This is after playing Witcher 3.
    (one weird thing is that clock stayed at 2.5 ghz most of the time when throttlestop was running and when i turned off throttlestop, it went back up to 3.5 ghz. do you know why?)

    Settings

    http://imgur.com/ld5Hzrk
    http://imgur.com/JiybTdm
    http://imgur.com/3fmnlpL
    http://imgur.com/jfUvQ1f

    Throttlestop Log

    http://pastebin.com/usLZu0qK

    Also I have one question for you, how can I apply Dynamic Offset Voltage with Throttlestop? I have it set at -60mv on XTU but I dont know if I also have to set it inside throttlestop. And how can I check if my negative offset voltage have been applied?

    thank you
     
    Last edited: Jun 18, 2015
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  45. unclewebb

    unclewebb ThrottleStop Author

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    @hslayer - Your first screenshot shows TDP Throttle is lit up even though the Package Power is only reporting 14.7 Watts. The screenshot I posted had my CPU running at full speed with the Package Power at 46 Watts and TDP Throttle was not lit up. Ultimately, that is the problem. Your CPU is throttling. I don't know why or how to fix that for you. My best guess is that there is a power limit register in the chipset or elsewhere that is being set to 0 Watts instead of 47 Watts. When this happens, all Turbo Boost will be lost and your CPU will be left running at the default multiplier of 25. It will also report TDP Throttle because your CPU is trying to run beyond the 0 Watt limit that has been set.

    Have you run the Limit Reasons program yet while this is happening? Using this throttling method to disable Turbo Boost is like getting kicked in the privates but there might not be anything you can do about that. Manufacturers can come up with whatever throttling schemes they like.

    In the log file when the multiplier starts dropping below 25.00, that is a sign that this secondary power limit register has the Clamp option selected. Clamp not only disables Turbo Boost but it also allows the CPU to go way below the 25.00 multiplier in order to reduce power consumption. That's a nasty trick to use on a gaming laptop.

    When TDP Throttle is lit up and power consumption is way below the standard 47 Watts can you run my MSR Finder program and click on the SnapShot button.

    MSR Finder
    https://www.sendspace.com/file/luzete

    This program will then take a snapshot of the contents of all of your important CPU registers. I am curious to see if your CPU is using the Power Limit 3 (PL3) register that I recently found out about. Your CPU registers do not contain any personal data so you can upload the log file to www.pastebin.com

    Most of the newer laptops do not use Clock Modulation or Chipset Clock Modulation anymore for throttling purposes so there is probably no need to check either of those.

    In your ThrottleStop - FIVR screenshot, at the top right it does show that your CPU is using an offset voltage of -0.0596 volts (-59.6 mV). This screenshot also shows that you are not using ThrottleStop to control your CPU voltage. I prefer to use one program or the other but not both at the same time but ThrottleStop shows that the offset voltage you set in XTU is definitely working.

    Edit - To use ThrottleStop to control your CPU voltage you need to check the Unlock Adjustable Voltage box and then drag the Offset Slider to the left until you get the desired amount of Offset Voltage. Hit the Apply button and then have a look in the table to the upper right to make sure that your CPU is using your new setting. If I was using ThrottleStop for this, I would exit Intel XTU. Two different programs that are both trying to control your CPU voltage is usually not a good idea.

    ThrottleStop does not appear to be helping your laptop run at its designed speed so if you are getting better performance without ThrottleStop then don't use it. I wish it could solve all of these problems but sadly, it cannot. There are too many different throttling methods being used and I don't have access to enough hardware to try and come up with a solution for all of them. I definitely do not want to spend my own money on a laptop that is designed to throttle and perform well below its specification no matter how nice it looks. :(
     
    Last edited: Jun 18, 2015
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  46. D2 Ultima

    D2 Ultima Livestreaming Master

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    HEAR HEAR
     
  47. hslayer

    hslayer Notebook Guru

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    @ Mr. Fox is 112A current limit for alienware 15 with 4710hq and 240w charger safe to use? if yes can i raise it higher and still be safe? what would you recommend? thank you
     
  48. WillSkiies

    WillSkiies Newbie

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    Hi Guys ,

    I used this application and i noticed the TDP button flashing indicating my cpu was throttling temperature wise . However it never once dropped in mhz / ghz . constant steady rate . Is it safe to assume that my cpu runs hot when under this type of stress but is able to handle the pressure due to the steady rate of frequency ? . Thank you for your help in advanced .
     
  49. WillSkiies

    WillSkiies Newbie

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    I am also using an alienware 17 980m , 4720hq. I have a week left to trial it and push it to them ax before i can get a refund . My only concern is throttling so any suggestions would be great . Referring to my previous above quote aswell . And i really dont want to get a notebook cooling pad .
     
  50. unclewebb

    unclewebb ThrottleStop Author

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    When TDP Throttle is flashing, that means your CPU is throttling due to power consumption, not temperature. Many Intel CPUs are designed to use full turbo boost but only for a limited amount of time. If power consumption significantly exceeds the TDP, full turbo boost might be limited almost immediately. As always, post a screenshot of what you are seeing or a log file so I can have a look.

    @hslayer - I was hoping that you would run the MSR Finder program so I could try and improve ThrottleStop and maybe come up with a solution for you. I would like to see if your laptop is using the Power Limit 3 register. This register exists in my 4700MQ but Lenovo is not using this throttling method in the Y510P so I need to find someone with some hardware that is using this method. If anyone has anything Broadwell related and wants to help with testing, let me know.

    http://ark.intel.com/products/codename/38530/Broadwell#@All
     
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