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    P170EM - Abnormal i7-3720QM OEM temperature variations

    Discussion in 'Sager and Clevo' started by KisSme, Sep 1, 2012.

  1. KisSme

    KisSme Notebook Geek

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    Hello !

    Could you say if this temperature's variations are normal or not ?
    If not, what is the problem ?

    Thermal compound is Prolimatech PK-3
    To do good conductivityi, i drope a little line on CPU



    Thank you in advance for your answer =]
     
    Last edited by a moderator: May 12, 2015
    KisSme, Sep 1, 2012
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  2. arg8

    arg8 Notebook Consultant

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    Perhaps repasting your CPU would help.

    Can you do another test with just HWinfo64 running:
    1) Disable "Clevo EC" sensors (it can slows down sampling): right click on "Clevo EC", select "Disable Monitoring"
    2) Click configure and set the "Scan Interval" = 100ms (fastests)
    3) plot and stack the graphs for all 4 the CPU cores:
    stack 1: clock frequencies
    stack 2: core temperatures
    stack 3: total CPU usage, CPU package power, CPU package temperature, core Max temperature
    4) run at idle for bit to show how high fast the core temperatures rise and drop vs usage at idle and then start the load test.

    e.g.: Setup the graphs something similar to what is shown in this post: http://forum.notebookreview.com/sager-clevo/652388-high-fanspeed-noise-clevo-p170hm.html#post8762448

    Maybe others can report this test on their systems (irrespective of CPUs). It would be interesting to see how fast the cores temperatures rise and drop with various thermal setups. There might be some good indicators on the integrity of the TIM and it's performance by observing the dynamics.
     
    arg8, Sep 1, 2012
    #2
  3. hackness

    hackness Notebook Virtuoso

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    It's a little hot, mine peaks at 89C after I added some copper heatsink onto the copper plate and is a i7-3740QM, was 92C before added. Also the temperature didn't bump into high temp when the stress test started, it'd raise very slowly. The RPM is only around 2845 RPM. Mine is a P150EM tho.

    Edit: I think your problem is probably the paste between the die and the heatsink, since yours bumps into 101C 2 seconds after you launched the stress test... This usually is because the paste isn't well done and became an obstacle when huge amount of heat is produced on the die side.
     
    Last edited by a moderator: May 12, 2015
    hackness, Sep 1, 2012
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  4. KisSme

    KisSme Notebook Geek

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    Thank you for your answer
    The thermal compound that i use is Prolimatech PK-3
     
    Last edited by a moderator: May 12, 2015
    KisSme, Sep 1, 2012
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  5. hackness

    hackness Notebook Virtuoso

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    I'm using Prolimatech PK-3 as well :confused:

    This is mine after running Passmark PerformanceTest 7.0 (i7-3740QM):

    [​IMG]

    Peak at 84C.

    Edit: Yours seems to be a little under performing as well, and yours was hitting 100% usage on all 8 threads. But maybe it's because you were also recording a video.
     
    Last edited by a moderator: May 12, 2015
    hackness, Sep 1, 2012
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  6. MrDJ

    MrDJ Notebook Nobel Laureate

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    ive never used paasmark before so ran the full test. all the popup graphics simulations on screen showed it was using hd4000. how do i change it to run with 680?

    direct link was too small so sorry for big picture

    [​IMG]
     
    MrDJ, Sep 1, 2012
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  7. KisSme

    KisSme Notebook Geek

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    Thank you for your answer
    I edited my post after your advice =]
     
    KisSme, Sep 1, 2012
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  8. KisSme

    KisSme Notebook Geek

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    I dont know but if you want, you can open a new thread abount your problem
     
    KisSme, Sep 1, 2012
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  9. MrDJ

    MrDJ Notebook Nobel Laureate

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    MrDJ, Sep 1, 2012
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  10. KisSme

    KisSme Notebook Geek

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    Like this, the thermal paste is perfect and it didn't spread out as you say :]
     
    KisSme, Sep 1, 2012
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  11. arcticjoe

    arcticjoe Notebook Deity

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    do not spread it, just drop a line on top and screw the heatsink down in the numbered order. Spread vs line method = difference of 5c for me.
     
    arcticjoe, Sep 1, 2012
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  12. hackness

    hackness Notebook Virtuoso

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    Use line method like Arcticjoe said, pea method doesn't work well here because it cannot cover the whole rectangle die without excessive amount of paste being applied. And spread method introduces air bubles, air is a material that has very very bad conductivity.
     
    hackness, Sep 1, 2012
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  13. KisSme

    KisSme Notebook Geek

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    ok
    i drope a little line on CPU
     
    KisSme, Sep 1, 2012
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  14. james_het

    james_het Notebook Geek

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    Plz don t flame me, but has anytime happened that any1 tried 2 of these devices

    Overclocker Cafe - Cool IT Chiller - Beverage Cooler

    maybe attached to a notebookcooler devide? i mean u could just attach he 2 chillers to the bottom of the notebook cooler, so that the cold ait umps to he noebook fan....did i say idiocy?
     
    james_het, Sep 2, 2012
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  15. KisSme

    KisSme Notebook Geek

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    you can try your method if you want but I rather expect an "intelligent" and "sensible" reply
    but thank you even have participated...
     
    KisSme, Sep 2, 2012
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  16. Meaker@Sager

    Meaker@Sager Company Representative

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    Your temps are peaking, the cores throttle back to 1.1ghz and the temps drop, they then go back to full speed, rinse and repeat.
     
    Meaker@Sager, Sep 2, 2012
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  17. KisSme

    KisSme Notebook Geek

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    do you think that the CPU have problem ?
     
    KisSme, Sep 2, 2012
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  18. hackness

    hackness Notebook Virtuoso

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    What's your ambient temp like? Any walls behind the laptop when you are using it? Also are you using the laptop on a flat surface?
     
    hackness, Sep 2, 2012
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  19. arcticjoe

    arcticjoe Notebook Deity

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    its definitely not CPU, but your heatsink. Either its not touching your CPU properly (you can test by opening the back and applying some pressure on the heatsink whilst laptop is running. If you see stable temps then your heatsink isnt making proper contact. If nothing changes then its your thermal compound, or the way it is applied.
     
    arcticjoe, Sep 2, 2012
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  20. KisSme

    KisSme Notebook Geek

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    Hello here !

    After arcticjoe's advice, I ordered a new heatsink and my problem is solved
    The problem was indeed the heatsink
    Chipset heated while the radiator was still cold without affecting CPU cooling

    Many thanks for everybody have participated to solve my problem ! =]
     
    KisSme, Sep 10, 2012
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  21. hackness

    hackness Notebook Virtuoso

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    Thanks to share that, looks like the liquid stored inside the heat pipes has gone wrong or something. Or the contact with the die is completely off.
     
    hackness, Sep 10, 2012
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  22. Meaker@Sager

    Meaker@Sager Company Representative

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    Usually the wick is what gets damaged or is not quite right internally.
     
    Meaker@Sager, Sep 10, 2012
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  23. KisSme

    KisSme Notebook Geek

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    I found a bend on the heat pipes in the corner of the radiator
    It's possible that this bend was the cause
     
    KisSme, Sep 11, 2012
    #23