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    CPU hits 99C and throttles when running division

    Discussion in 'Sager and Clevo' started by Jakamo5, Mar 11, 2016.

  1. Jakamo5

    Jakamo5 Tetra Vaal

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    Can someone tell me how bad this is? I ran HW Monitor just while I was playing.

    http://postimg.org/image/n0rl00cbr/

    My core i7-6700K hits 99C and throttles when running the division. My GPU maxes out at 79C (with an average of 74C). Isn't this TOO hot?
     
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  2. Brent R.

    Brent R. Notebook Evangelist

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    How long are you playing when it starts to overheat ? I suggest elevating the back of the laptop, though there has to be something wrong for a brand new laptop's CPU something is wrong for sure weather it be software/hardware/Paste...that isn't normal I suggest contacting whoever you bought the laptop from I am sure they will help, but I think we would need more info in order to help.....what is the situation how long are you playing, are you rendering videos while you play? how warm is your room? what paste do you have? provide as much info as you can
     
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  3. hmscott

    hmscott Notebook Nobel Laureate

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    Man, that's a 91w CPU in a 15.6" frame, you're gonna see thermal maximums hit in that small area.

    Out of the box the Clevo 6700k BIOS settings have the voltage set too high. Try undervolting the CPU / CPU cache by -100mV to -150mV. Find the highest stable undervolt, -100mV is good, -150mV is better - less heat generated.

    If you are using more CPU than GPU - the GPU is running cooler, try limiting the CPU performance for those apps as the GPU only needs to be kept busy, and even 45w 6700HQ's can do that.

    You could reduce the clock rate, fix it less than what you are using now - are you already OC'ing? If you are OC'ing that will exacerbate the high CPU voltage problem, undervolting will fix that.

    Another trick to use is to disable Hyperthreading, since most games only need 4 cores. This would be a good solution overall as it will keep the heat down all the time. CS:GO without a FPS limit set is a good example, it will run the CPU to 100%.

    Some people with this issue make hotkeys to switch speeds depending on the app.

    You can disable Hyperthreading in the BIOS with Prema BIOS, not sure about stock BIOS.

    If you can't do it in the BIOS, then in Windows use the TaskManager => Details Tab => right click on initial Steam processes and use Processor Affinity to disable "odd cores" like 1,3,5,7 and then when you start a game from Steam, it will inherit the Affinity setting and only use 4 cores.

    You could also get a cooling pad with large fans, or do what the top benchmark score holders do, run their laptops sitting right on top of a portable air-conditioner vent :)

    The full performance desktop CPU's running at 91w need a bit of tuning to get the best performance within the cooling available in a laptop.

    If you have the Prema BIOS you can drop the voltage a bit with a -150mV offset, if you don't have that option in the BIOS then install and use Intel Extreme Tuning Utility - XTU - and that will allow you to set the voltage offset for CPU and Cache, as well as multipliers for CPU and Cache.
     
    Last edited: Mar 12, 2016
  4. Brent R.

    Brent R. Notebook Evangelist

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    Actually I don't think at stock a new laptop is suppose to thermal throttle....desktop cpu or mobile cpu that is not suppose to happen at stock speeds, I suggest just first trying to undervolt don't change clock speeds just undervolt with xtu if you don't know how to do this you can look on youtube, google, or ask here :) You have a new laptop if I got a new (expensive) laptop and it overheated when I played a game I would be PISSED and asking for a fix from who you bought it from (maybe demanding a fix) I would first elimate any software/hardware/paste problems BEFORE you do any undervolting or changing any settings at all because that wouldn't be a fix it would be a bandaid....good luck
     
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  5. hmscott

    hmscott Notebook Nobel Laureate

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    Well, you are suggesting making changes to reduce thermal output, not running it unaltered out of the box, so at least you realize that when reality meets expectations, you need to adjust to fit, so to speak :)

    The 91w 6700k is generating as much heat as 2x+ the 45w 6700hq, so it's going to take 2x+ the cooling capacity to keep that 91w 6700k cool, and it's hard to double the cooling capacity in a 15.6" frame.

    Hopefully, after tuning, some specifically for CPU intensive apps / games, you can optimize the throughput.

    For example, I can run my 5950HQ at 4.2ghz stable. But, at that power draw it's going to thermal throttle under load, and power/current throttle before that. It's only got 47w to play with.

    If I turn down the cores from 4 x 42x to 4 x 35x and cache from 34x to 32x, and undervolt by -100mv I can keep a constant 35x throughput.

    If I leave it at stock or higher clocks, the average throughput is 33x, so by tuning I can reduce heat and actually increase work done over extended time periods.

    @Jakamo5 could also delid his CPU and change the IHS paste to CLU to get the best single heat reduction, 10c-20c. :)
     
    Last edited: Mar 12, 2016
  6. Plur

    Plur Notebook Consultant

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    Also with the above tips I suggest undervolting. Turning off turbo boost for 4.0Ghz on all 4 cores I am able to achieve -160mV on my 6700K shaving quite a few degrees off. Though 99C is an extreme and sounds like something is incredibly wrong there.
     
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  7. hmscott

    hmscott Notebook Nobel Laureate

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    A number of people have reported being able to hit 99c in the P870DM group, until they undervolted by -100mV to -150mV.

    Out of the box the stock BIOS has the CPU's voltage set too high.

    Get the matching Prema BIOS/vbios/EC if you can as well.

    Also, if you have a Full Speed Fan switch, use that for demanding games / apps, it will help a lot.
     
    Last edited: Mar 11, 2016
  8. Brent R.

    Brent R. Notebook Evangelist

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    Yes exactly there is something wrong, and I dunno what the other guy is talking about this laptop is not suppose to thermal throttle out of the box stock....
     
  9. hmscott

    hmscott Notebook Nobel Laureate

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    Here are a few mentions of 99c from the larger frame 17" P870DM with 6700k.

    http://forum.notebookreview.com/thr...enix-has-arisen.781814/page-461#post-10212484

    http://forum.notebookreview.com/thr...enix-has-arisen.781814/page-100#post-10138194

    http://forum.notebookreview.com/thr...enix-has-arisen.781814/page-464#post-10212517

    http://forum.notebookreview.com/thr...enix-has-arisen.781814/page-464#post-10212517

    There are more 99c mentions, and more that don't specifically say 99c but talk about that same overheating problem with stock BIOS CPU voltage.

    If it happens with the much larger cooling system in the 17" frame, it's going to happen in the smaller 15.6" frame.

    Undervolt by -100mv to -150mV, more or less, whatever your example of 6700k will run stable. That should get rid of the peak heat you are seeing, but read my other posts for other heat moderation tricks to deal with app/game specific heat issues.
     
    Last edited: Mar 11, 2016
  10. Brent R.

    Brent R. Notebook Evangelist

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    Totally different laptop totally different situations....that laptop has the desktop 980 different cooling design, so its completely different..
     
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  11. hmscott

    hmscott Notebook Nobel Laureate

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    The 17" P870DM has 3 fans, 3 separate cooling systems, independent for each of the 1 or 2 GPU's and the 91w 6700k.

    It doesn't matter what GPU complement the P870DM has, the stock BIOS comes with a too high CPU voltage setting, and all of them will hit 99c and thermal throttle.

    Read through those posts in that thread to learn how to manage it better.

    Once you master the voltage, and other settings to reduce temps, you can tune for performance:

    Clevo Overclocker's Lounge
    http://forum.notebookreview.com/threads/clevo-overclockers-lounge.788975/

    It's the way of the 6700k in the new Clevo's, both 17" and 15" frames, at stock BIOS CPU voltage, they will hit 99c and thermal throttle out of the box.

    Undervolt by -100mv to -150mV, more or less, whatever your example of 6700k will run stable. That should get rid of the peak heat you are seeing.

    That's much easier and quicker than pulling apart the laptop to re-paste :)
     
    Last edited: Mar 12, 2016
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  12. Brent R.

    Brent R. Notebook Evangelist

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    lol I just don't want this guy to do all these suggested settings/mods/configs when let me be clear in my opinion a brand new laptop stock should not thermal throttle while playing this game, I have not seen any other topics about this laptop overheating, I have not read any posts in the owners lounge/review http://forum.notebookreview.com/thr...and-np9778-g-batman-2-0-owners-lounge.776183/ (no way I could read all the posts in that thread tho). If you do hear of this same laptop's CPU overheatings in a similar situation that might be helpful the figuring out whats going on here, other than that I don't have much else to contribute until the topic creator gives more info and to say to them please don't go and change all these settings before confirming it isn't software/hardware/paste related unless you know what you are doing. Thanks take care!

    Also I know in some places if what you buy online doesn't perform as advertised that would be considered false advertising and they could get a full refund so according to what you are saying they are selling a laptop that doesn't work as they advertise it because you shouldn't have to undervolt underclock etc etc to stop thermal throttling.....not sure why such a big company such as Sager/Clevo would do that to themselves.....but like I said lol in my opinion this laptop should have no problem at stock playing this game without thermal throttling something other than it being stock lol is wrong...
     
    Last edited: Mar 11, 2016
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  13. EORUCIGN

    EORUCIGN Notebook Consultant

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    why don't to use after market thermal compound, and if this doesn't work, underclock and under volt the cpu.
     
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  14. hmscott

    hmscott Notebook Nobel Laureate

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    99c mentions in:
    **Official Clevo P75xDM and P77xDM/Sager NP9758-G and NP9778-G "Batman 2.0" Owner's Lounge**

    http://forum.notebookreview.com/thr...0-owners-lounge.776183/page-229#post-10102238

    http://forum.notebookreview.com/thr...0-owners-lounge.776183/page-113#post-10102263

    http://forum.notebookreview.com/thr...0-owners-lounge.776183/page-123#post-10104481

    http://forum.notebookreview.com/thr...0-owners-lounge.776183/page-115#post-10102513

    http://forum.notebookreview.com/thr...0-owners-lounge.776183/page-113#post-10102249

    http://forum.notebookreview.com/thr...0-owners-lounge.776183/page-123#post-10104481
     
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  15. Brent R.

    Brent R. Notebook Evangelist

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    dude, did you actually look at any of these links you posted? only 1 out of the 6 say anything about the temp of the CPU and the one that does say something about the CPU temp is in reference to a benchmark which is totally different than a real world situation, but seriously please go look at the links you just posted lol I dunno how you came up with them but maybe it was an error or I dunno lol.....okay I am done sorry all, I have strong opinions (because im always right :) at least in my mind ) :)
     
  16. hmscott

    hmscott Notebook Nobel Laureate

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    Undervolting by -100mV - -150mV should be enough.

    Disabling Turbo would be a waste of performance, but that would definitely stop the high temps, because it wouldn't clock higher than base clock :)
     
  17. hmscott

    hmscott Notebook Nobel Laureate

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    You are going into it rejecting the concept - you aren't seeing what is right in front of you. :)

    If you went in trying to accept the premise, the stock CPU BIOS voltage is too high in the Clevo's with 6700k, you would work to discover it better to your satisfaction.

    Your premise that a laptop shouldn't thermal throttle out of the box is mistaken. It's an optimal idea, but doesn't always happen, even with a great laptop like these are.

    Searching on 99c isn't enough, but it gets you into the thread areas for reading more.

    Here are some better posts/quotes, some from early delivery when they were just discovering the problem, to more recent posts:

    http://forum.notebookreview.com/thr...enix-has-arisen.781814/page-100#post-10138194

    "Wow, this Skylake CPU can undervolt great! I was hitting 98-99C with throttling on wPrime at at stock. I set voltage to 1.000V Static (although reading 1.1-1.15V) and it's peaking at no more than 80C at stock 4GHz. I was a bit concerned at first, but now it seems these things can run cool and undervolt great"

    http://forum.notebookreview.com/thr...enix-has-arisen.781814/page-152#post-10150299

    "Ever thought of putting a peltier in a laptop, fox?
    Edit: Also, Mr.Fox is 100% right on the undervolting. I can hold a 4.2ghz easily with a -150mv undervolt. The stock volt is stupidly high. As someone coming from sandy bridge, I am just not use to 1.3v-1.4v being a high voltage."

    http://forum.notebookreview.com/thr...enix-has-arisen.781814/page-441#post-10211018

    "That means it's drawing more power; it needs more power to run stable. Set that back to 200,000 and then also undervolt as @Mr. Fox and @Phoenix suggested.
    You need to have *all* the recommended settings, it's a self-supporting group of system settings, to get the desired result. :cool:"

    http://forum.notebookreview.com/thr...enix-has-arisen.781814/page-254#post-10167330

    "1) You should undervolt whether or not you are overclocking. The default voltage is way too high."

    http://forum.notebookreview.com/threads/clevo-p870dm-g-review.784082/page-2#post-10137803

    Clevo P870DM-G Review
    http://forum.notebookreview.com/threads/clevo-p870dm-g-review.784082/page-2#post-10137803

    "Yes, all the reports I've seen of people using the 6700K have them getting undervolts of at least -100, some up to -200Mv.

    Which means Intel set the default voltages much higher than needed."


    There are lots and lots of these mentions in the Clevo 15.6" and 17" threads about the 6700k. The reason I am mostly quoting the P870 thread is because that is where I spend my time. The 15.6" version isn't of interest to me, but I know it has the same basic issues.

    The solutions / tuning are similar, but for some reason the PM870DM thread and Clevo OC'ing spend most of the time tuning the 17" variant.
     
    Last edited: Mar 11, 2016
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  18. James D

    James D Notebook Prophet

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    Is it wrong that new laptop has thermal throttling? Yes. But you can't blame hardware in what it's intended to be.
    Any arguing about what is wrong should be done after basic steps like downvolting and/or repasting before playing games. Surely you can monitor temps in low-demanded games if you agree with other guy in suspect that something is faulty but it's not that obvious as somebody believes.
     
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  19. Jakamo5

    Jakamo5 Tetra Vaal

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    I'll try to get more information if it happens again, but first I'll try undervolting to remedy it. To be honest, I don't know how long it was running at those high temps, since I didn't look at my sensors until after closing the game, but I had been playing for 2+ hours. If it were running at those high temps for more than 10-15 minutes, is that likely to cause any damage? CPU paste is IC Diamond Thermal Compound, pasted by the reseller (LPC Digital). The temperature of my room is 70F. Additional background processes when running the game are Steam, UPlay, and Discord (which shouldn't use much resource). Laptop casing did not feel hot at all, and exhaust air from fan in the back felt only warm and not hot at the moments that I checked.

    If the undervolting doesn't fix, I'll contact my reseller. It's just a huge bummer to have to go without a laptop for 2-4 weeks, as I'm sure many of you can attest to.
     
    Last edited: Mar 11, 2016
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  20. Jakamo5

    Jakamo5 Tetra Vaal

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    Here's some more information. I haven't tried undervolting yet, but I stress tested and then benchmarked using Intel's Tuning Utility. The stress test maximum temperature was about 87C, but the Benchmark that I performed about 30 seconds after the stress test sent me up to 96C, and caused momentary thermal throttling at some points:

    http://postimg.org/image/gu9x0kfif/

    I also ran HW Info during these two tests, and here are the results, so you can see my voltages and temperatures:

    http://postimg.org/image/jccwxl511/

    Thank you all for the insight into this. I have contacted LPC Digital to let them know of the issues and have mentioned that I might consider sending it in for a check. Maybe it wasn't pasted correctly?
     
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  21. i_pk_pjers_i

    i_pk_pjers_i Even the ppl who never frown eventually break down

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    These CPUs run fairly hot on desktops with decent sized heatsinks, it's no surprise that a laptop would run them even hotter.
     
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  22. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    The solution is very simple:

    1) Delid your CPU



    2) Apply Liquid Ultra Thermal paste between the IHS and the CPU die and also between the IHS and the heatsink



    3) Get a cooling pad to place your laptop on

    4) Undervolt by -150mV
     
    Last edited: Mar 11, 2016
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  23. James D

    James D Notebook Prophet

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    Only use that delid video for reference. Skylakes are very thin and you need proper technique. I will post instructions tomorrow.
     
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  24. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    That's the video I used to delid mine, worked perfectly, just have to be very patient and gentle and never cut sideways, but in an upwards motion in order to not scratch the PCB
     
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  25. Jakamo5

    Jakamo5 Tetra Vaal

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    Anyone with a 6700K in a laptop, can you run a stress test and then immediately run a benchmark with Intel extreme tuning utility, and tell me what your max temp is
     
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  26. hmscott

    hmscott Notebook Nobel Laureate

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    You've got XTU installed. It's a 5 sec trip through a couple of popup lists of negative voltage offset's for Core and Cache.

    You then have the changed elements in Yellow. Click Apply. The Yellow's turn to White as the settings are applied.

    Now those settings are currently running your CPU at reduced voltage, and hopefully that setting you are testing is stable :)

    Click Save, name the new Profile. For example you might name it:

    Stock Clock -100mV Core -100mV Cache

    Now XTU will have a stored Profile, which if you have it set correctly, will Apply that profile every time you boot.

    If those settings aren't stable, and your laptop freezes, powers off, and restarts, XTU will notice that, and it won't Apply that Profile at the next boot - or ever again unless you go in to XTU to set it again.

    XTU may start at the next boot to complain that you crashed, and you can then try new settings - save to a Profile so you know where you have been and what does / doesn't work. It helps to write this all down too.

    So far, all the posts I have seen on this by 6700k users say that -100mV works fine, and some push further to -150mV, and even -200mV.

    When tuning the negative voltage offset, you need to try several modes of testing to verify the setting will work in all modes of use.

    Load testing is obvious, use XTU Benchmark - for me this is enough to rule out the outlying settings quickly - if it passes that use the XTU Stress test.

    If that works, then use the settings in real usage, games, apps, browsing, watching videos, etc.

    Remember, you can always go in to XTU and reset to Defaults - I actually have a Stock "Default" Profile that I save so I can quickly switch to it when I need to do work I can't lose due to a crash.

    During the time you are testing to find stable settings it's not fun to be OC testing while doing real work and lose said work to a crash.

    After all the stress testing, game testing, app testing, let the laptop sit idle for as long as you can - in between the things you need to do - as idle mode crashes are the last you will see when focusing in on the best settings.

    If you get an idle crash, drop negative voltage offset by 5mV, like from -150mV to -145mV, and go back to idle.

    I have seen CPU's trigger on 2mv differences.

    Have fun :)

    Here is an example from my own tuning, with negative offsets for Core / Cache while running long batch jobs. I drop the core multipliers and cache multipliers to reduce power usage and heat, and at those power draws I can also do a nice negative voltage offset.
    XTU Settings 5950HQ long batch job runs 35x -100mV cores -100mV cache.jpg
    Notice how the new values have been loaded by selecting a Profile, but need to be Applied.

    Note: If you are nervous about crashing, don't be, it's not going to cause any problems. If you want to, after reboot do a right click on your C disk icon, Properties, Tools, and do a disk check every time you crash, and that avoids any disk corruption problems.

    It's a good idea not to be doing important work while the OC tuning process is ongoing.

    You can start at -50mV and work your way toward -100mV if that makes you feel better. It takes longer, and draws out the process, but maybe I am just jaded after doing this for so long, I just want to get it narrowed down and done.

    When I do it, I pick a high value to establish boundaries quickly, and then work within those boundaries for fine tuning. I would likely try -200mV first, then -175mV, then -150mV, etc.

    After finding a good starting point, I would then continue to work -10mV at a time till it got unstable, then fall back 5mV, etc. Getting a stable number after testing, I usually drop back 5mV to make sure it's stable.
     
    Last edited: Mar 11, 2016
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  27. hmscott

    hmscott Notebook Nobel Laureate

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    You might try asking for help in the active threads, pointing back here for help. For whatever reason this board seems to run off 1 thread for each model/make, thousands of posts related will fill them up. Unlike other boards that start a separate thread like you did.

    Just a heads up, if you get tired of waiting for a response. :)
     
  28. hmscott

    hmscott Notebook Nobel Laureate

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    You might not get a response here in this separate thread. This board runs different than others.

    Here there is an "Owners" thread for each make/model, and all traffic goes/starts through there. You will get quicker attention posting there looking for help first.

    Then you can point someone that responds to you to this thread for discussion.

    You can also use the @ sign in front of a username to give them an Alert that they have been called out in your Post.

    Like @Phoenix - as he has already responded to you earlier. Or you can find a username in the main thread that seems to know about this issue, and @ them too.

    Maybe look at the posts I provided links for earlier, to specific posts as well as threads. Be aware some of those posts are older, you might get higher hit rates @'ing people from more recent active posts in the same thread.
     
    Last edited: Mar 11, 2016
  29. Brent R.

    Brent R. Notebook Evangelist

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    Well hopefully you won't have to send the laptop in at all and LPC will beable to help you getting it running how it should, and stress tests and benchmarks are artifacil and any program or game you use will be totally different and should not be nearly as hard on your system, thus those tests might have really high temps but a game won't, good luck please keep me posted, I can stand a lil undervolting to help temps a little right out of the box stock but anymore than that and I would be furious to have a new laptop throttle in a simple game. Take care!
     
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  30. Jakamo5

    Jakamo5 Tetra Vaal

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    Interestingly, I tried -110 mv and stress test caused me to reboot. So then I undervolted by -100mv. I stress tested and passed. I benchmarked and still hit high temps, which is concerning, but I didn't reboot, I was stable. 10 minutes into the division, I froze up and rebooted. I'm worried. I'm going to try stress testing for 15 minutes rather than the default 5 minutes, and see if that causes a reboot. I agree with you that a game shouldn't be causing higher stress than the actual stress test, but it seems that it is, since I'm passing the stress test but rebooting while playing. If I don't undervolt at all, I dont reboot while playing, but I do hit those extremely high temps and then throttle.

    Larry from LPC Digital replied to me and told me those temps are too high, and he asked for my information. I think hes going to want me to send it in, we'll see.
     
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  31. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    Sounds like a bad thermal paste job to me if you get those high temps at stock clocks and even with a -100 mV undervolt
     
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  32. Jakamo5

    Jakamo5 Tetra Vaal

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    Yeah, could very well be it. It was supposed to be a Diamond IC thermal compound "free upgrade". It's bad because I also had a cosmetic defect coming from the factory.. ( http://forum.notebookreview.com/thr...h-slight-cosmetic-issue.785382/#post-10158654). Makes me feel like the appropriate level of attention was not paid to my laptop...
     
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  33. Brent R.

    Brent R. Notebook Evangelist

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    The reason it is freezing and/or rebooting is because your undervolt is too high start and 50 then go by 5 or 10 if 50 is stable with stress test and playing your game then try 60 with stress test and your game etc etc...but I don't think undervolting will help the temps enough because I think as I have said there is something wrong with either hardware/software or its thermal paste job...keep me posted thanks, take care!
     
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  34. hmscott

    hmscott Notebook Nobel Laureate

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    That's a good start :)

    You still have a lot of room "under" -100mV. Based on your results, I would drop down 10mV to -90mV, and see how that works.

    The starting values were just that, the first ones to try based on other reports, you will find an undervolt that works.

    I have had CPU's undervolt at -125mV, and one that would only do -20mV, it doesn't take long to figure it out, and it is worth knowing / using undervolting with high power CPU's.

    If you go into those threads and pose your question with the undervolt data you have, that would be a good start. There are other tuning parameters people have been using to reduce temps.

    You have had the laptop for a while now, last time we talked was in December. Do other games do this as well? Is it only The Division?

    Some games do use more CPU than others, and will drive utilization higher resulting in high temps.

    Speaking of high temps. Are you only going by the single Maximum value showing in hwinfo64 after a run in The Division?

    The undervolt should be removing some heat, temps should drop on average, but peaks can still be hit.

    What I have found is that it's necessary to turn on the hwinfo64 logging, and have it log a complete test run, then use Excel to load the csv log results, and then you can see how *often* the peaks hit.

    People find the Maximum temperature peaks only happen a couple of times, and the normal temps are in the 70's/80's for most of the time during a game, benchmark, test.

    A high Maximum temp can mask what is really going on typically.

    The Average temp is supposed to indicate this, but its more reassuring to see the temperature samples every couple of seconds throughout the run to reinforce that the peaks are actually rare.

    For example, when I benchmark, I need to usually throw out the first part of the run from hwinfo64 - the fans don't ramp up quick enough to cool immediately when the CPU hits 100%.

    If I am interactively watching the hwinfo64 Window I will see Thermal Throttling for 10-30 seconds while the automatic fan curve kick in and cools down the CPU enough to not throttle. Then I can clear the peak/Thermal Throttle readings by clicking the Clock - reset - button to start taking readings fresh again.

    You can also stop this behavior by turning on the Max Fan button and start the fans running at Maximum before starting the test.

    Are you also looking at the CPU utilization? Do the cores all spin up to 100% and stay there, or do they only peak there once in a while - same idea - the game will vary the load throughout the session - and may only hit the peaks occasionally.

    If the fans aren't kicking in quick enough, try running with Max Fans a few minutes before starting to play and see what the peak is then.

    This could eventually be a re-pasting, but its a good idea to learn these techniques anyway, as they have the same effect on reducing temps from a maximum that you find acceptable.

    Maybe peaks after re-pasting will be in the low 90's, these techniques can reduce further under 90's.

    Good luck, and please keep us in the loop how this all works out :)
     
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  35. James D

    James D Notebook Prophet

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    You are telling me that for all this time out of curious you never loocked at new achieved temperature to see if you need to continue looking for the best downvolt settings?
    It's like we need to torture you for giving basic info. I don't have that much time. Leaving it.
     
  36. Jakamo5

    Jakamo5 Tetra Vaal

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    Yup, I understand the undervolting is what's causing the reboot, was just pointing out its interesting that I passed the stress test and benchmarking with that undervolt, but then rebooted while playing the game. I would have expected the stress test to stress the cpu more than the game.

    During the benchmark test in XTU with -100mv (which isn't stable in both the division and dota 2, as it turns out), my CPU temps rise (in all cores 1-4) up to about 90C after only 30 seconds, and then jumps back and forth between ~87C and 97C. Above 95C, the throttle kicks in. With stock voltage, I hit 99C and throttle more often.
     
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  37. Jakamo5

    Jakamo5 Tetra Vaal

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    Trying to figure out what you're saying here is "torture" enough. I've been giving basic info, I'm sorry if you haven't been able to understand it. If you have a language barrier, it's fine, but please don't try to blame others for your not being able to understand.

    I had to read your message here a couple times before I realized you seem to think the proper way to undervolt is to check CPU temps and vary your voltage based on that.... I should look at my "achieved" temperature to see if I have the correct "downvolt" settings? Wrong. You undervolt to the point that you're still running with stability. The temperature change is a result (hopefully).

    If you don't have that much time, why are you bothering to even post here. Please do "leave it". You have nothing useful to say.
     
    Last edited: Mar 12, 2016
  38. i_pk_pjers_i

    i_pk_pjers_i Even the ppl who never frown eventually break down

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    Either that, or the undervolt isn't actually being applied. Make sure that it is actually being undervolted.
     
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  39. Jakamo5

    Jakamo5 Tetra Vaal

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    I'm applying it and then saving it as a profile. I can see it in effect in the right side in XTU. Also, it's definitely in effect because I'm freezing up and rebooting as a result while playing games. With stock voltages, I'm not rebooting, just running hot.

    So -100mv is definitely too much. I will try less than that, just for my own curiosity, but since the temps are still hot even with -100mv when benchmarking, the problem won't be resolved with less underclocking. Fortunately, LPC digital has agreed to have it sent in.
     
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  40. hmscott

    hmscott Notebook Nobel Laureate

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    That's how undervolting (and overvolting) work, your stability isn't attained just by a single stress test. Some things will push the CPU differently than others.

    And, when you find a stable undervolt in stress testing, under a number of apps, benchmarks, games, there is 1 more mode that you need to get through testing, idle. You can get an idle crash at an undervolt even though it works fine under all stress situations.

    Often this isn't the case. Once you get a good value, it may also pass idle, but if you do crash it's often a small change required, like I said earlier, drop down 5mV and run more / idle more.

    The crashing of DOTA2 / The Division isn't a surprise, but I would still like you to check other games than The Division for high temp readings, is The Division the only one that gets so high?

    I am seeing reports of high CPU temps from running The Division, sporadic reports, but is early days in playing the game. People usually just play and ignore the temps / effects, unless they do it as a matter of course all the time.

    Try -90mV for a while and hopefully that is good, then try -95mV and see if that is good too. The differentiation in voltage can be narrowed down as close as 2mV, so keep at it.

    Did you try turning on Full Fans before starting the game / measurements, and leave them on during the run?
     
  41. hmscott

    hmscott Notebook Nobel Laureate

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    Are you applying the undervolt to both CPU and cache?

    The testing you are doing is helping LPC digital decide how to handle the RMA, after this testing you have done your best to mitigate the problem, now it's up to them to solve.

    But, knowing these parameters and results before sending it will give you a basis to measure the results as well. Remember to save the logs from the hwinfo runs.

    Does The Division have a benchmark? Maybe use that as a test to get readings. If you have a game that does have a benchmark built in, like the Batman games, Tomb Raider, Mordor, etc, use that to get log files with readings you can come after the RMA.

    It's fun, right? :)
     
  42. Jakamo5

    Jakamo5 Tetra Vaal

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    I'll try less undervolting and full fans tomorrow, with Fallout 4 added in. I don't really see the fan thing as that viable of a solution, it would hurt my soul to have to run a $2400 gaming laptop on max fans every time I play a current game. Seems like that would be masking an issue that shouldn't exist in the first place.

    yup. In XTU, applying undervolt to core using the slider will automatically apply it to cache as well. I don't think Division has a benchmark, and I don't own a game that has a benchmark, but I'll try to check it out with different CPU stress tests I can find online. LPC digital is having the prepaid shipping sent over on Monday, so this weekend I'll do a whole bunch of comprehensive tests and logs, and send them over to Larry with the hope that he'll get them to Sager as well.
     
  43. hmscott

    hmscott Notebook Nobel Laureate

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    The fan thing is to get more data points. As well as to recognize that the auto fan profiles on most laptops start too slowly, letting a benchmark run away and heat up the CPU well past normal temp before the auto fan spins the fans fast enough to cool the CPU.

    Full fans just gets the fans in motion so your Maximum temp reading isn't polluted with the slow auto fan startup.

    You can turn off Full fans after a few minutes, after starting the game, and the temp of the CPU should allow the auto fan profile to keep the fan speed high enough to cool the CPU, and not need to run at 100%.

    Doing the logging and looking at the results will give you a good feel as to what is going on throughout the game / test. You can see all the related values - CPU speed, temp, power drawn, etc.

    You might consider asking them to paste with Coollaboratory Liquid Ultra (CLU), it's the best cooling compound for high temp applications like a 91w CPU in a laptop.

    Coollaboratory Liquid Ultra (CLU)
    http://www.coollaboratory.com/en/products/liquid-ultra/

    Does LPC do RMA work themselves, or are they sending it off to Sagar for the work? If so you might not have a choice in paste, but it doesn't hurt to ask.

    As also mentioned, Delidding - pulling the can off the CPU - and re-pasting the CPU under the can with CLU helps too.

    If they can't do this, than get them to swap in another CPU - as it could be the CPU's integrated head spreader paste job that is the real problem.

    If they won't re-paste under the CPU can, then odd's are swapping the CPU for another one gives you another roll of the Silicon Lottery dice, and most CPU's IHS is better than what you are seeing now.

    At least your GPU runs cool :)
     
    Last edited: Mar 12, 2016
  44. bennni

    bennni Notebook Evangelist

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    I suppose you could consider running Throttlestop and limiting the CPU frequency. Sure it would be a bit slower (Although 3GHZ would probably show no performance decrease in many tasks) but you can easily switch to full power when you require it. It's a shame, since it's limiting extra power that you paid for but it might give you a bit more stability by avoiding throttling.

    I can't get past 91W TDP being used in ~15" notebook - granted the decreased Lithography has meant improvements but it sounds like cramming a blown, big-block 8 into a Mazda Miata and being surprised that the chassis has a habit of trying to twist itself into a corkscrew when applying full throttle. I appreciate this doesn't help you OP - hopefully undervolting or limiting CPU frequency helps a little.
     
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  45. Meaker@Sager

    Meaker@Sager Company Representative

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    Usually I find using the TDP to limit speed works better than lowering the maximum speed.
     
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  46. HTWingNut

    HTWingNut Potato

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    Reduce CPU speed to 3.8GHz and undervolt (should be able to drop by at least 120mV, likely 150mV). Problem solved.
     
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  47. Jakamo5

    Jakamo5 Tetra Vaal

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    I can only undervolt by -80mv with stability (so far no reboots today from it, but they day is young). I tried -150mv and had to decrease, and -80mv is where I'm currently at.

    I wouldn't really call 3.8ghz problem solved though, I'd call that making a sacrifice. Sure that's fast enough for most things, but the fact is, I don't have this temperature problem except for times where I am actually clocking maximum (and then throttling). And that's when I'm gaming, which is what the laptop is built for. I don't want to treat the symptoms and not treat the cause.

    Regardless, the point is moot now. All the experimentation I'm doing this weekend is just to provide more info to LPC and sager factory. They're already having it shipped over on Monday.
     
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  48. i_pk_pjers_i

    i_pk_pjers_i Even the ppl who never frown eventually break down

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    I don't like using TDP to limit speed because then I don't really know what my maximum speed will be. I like being able to control the max speed all myself and knowing what my maximum speed will be and knowing what my maximum temperature I am willing to deal with is versus the lowest maximum speed I am willing to deal with.
     
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  49. Meaker@Sager

    Meaker@Sager Company Representative

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    With my chip I have a fairly flat undervolt curve depending on speed (until you go above stock) so I suppose the best method can depend on your chip, I tend to find targeting TDP targets a specific max temperature pretty well though. I have a quiet mode and by selecting TDP and can prevent the fan from going to full more easily regardless of the workload I am throwing at it.
     
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  50. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    you shouldn't underclock a CPU just to run it with good temps. It should run either faster with a slight overclock or at least run at the advertised speeds.
     
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