Any Thinkpad P52 owner?

Discussion in 'Lenovo' started by shengna, Jul 30, 2018.

  1. User32

    User32 Notebook Deity

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    I really like GC Extreme now, after using AS5 for years.
     
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  2. ike2k

    ike2k Notebook Guru

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    upload_2019-1-18_4-24-8.png
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    Here are a few XTU and HWinfo current shots of my system during a 4k rendering. While temps are WAYYY down, it sounds like my fans are hardly spinning compared to before. I have not played with fan speeds at all. Max core freq seems to be more in the 3.3 GHz now compared to 3.65 GHz range before. I feel gimped!
     
  3. User32

    User32 Notebook Deity

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    You're hitting your Power Limits. Try undervolting and increasing the power limits with ThrottleStop.
     
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  4. User32

    User32 Notebook Deity

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    Just repasted a Precision M4300 with this stuff, went from the 11 year old original paste to GC Extreme and dropped nearly 20c!
     
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  5. ike2k

    ike2k Notebook Guru

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    I guess I'll give throttlestop a try since I am already undervolted -160mV.
     
  6. ike2k

    ike2k Notebook Guru

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    Did around a 30 minute render today and at first the package TDP stayed at 45w, but then about 10-15 mins in it dropped to 35w for the rest of the render. Fans were ramped up at first and then as the wattage decreased, the fans slowed as well as if they had no problems keeping cool. On the chart below you can see the drop in power & speed about 1/3 of the way in. Temps only around 82c.

    upload_2019-1-19_17-58-40.png
     
  7. unclewebb

    unclewebb ThrottleStop Author

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    @ike2k - Try using the ThrottleStop FIVR - Disable & Lock Turbo Power Limits feature. It might be able to help with this type of throttling.

    [​IMG]
     
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  8. Kuro Kensei

    Kuro Kensei Notebook Consultant

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    Hey Unclewebb,

    Sorry to hijack the thread, but does you program have support for AMD Ryzen processors??
     
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  9. Kuro Kensei

    Kuro Kensei Notebook Consultant

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    It could be that you've undervolted too much and the effective power that your CPU is getting is now too low to sustain higher clocks. Can definitely see it in the max power/TDP values. Another thing to keep in mind, Lenovo did implement a very aggressive throttling policy in many of their notebooks. It may very well be throttling at around 80C. My E485 does that if I push TDP too high in the 40W+ range.
     
    Last edited: Feb 13, 2019
  10. Mobius 1

    Mobius 1 Notebook Nobel Laureate

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    @User32 @ike2k can you run some 3dmark benches?

    Preferably if you can heat up the machine to be nice and toasty on the CPU and GPU beforehand.


    Looking at what the 8850/P3200 MQ can do, but there's so little data on the P3200 MQ GPU.
     
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