P955ER throttling

Discussion in 'Sager and Clevo' started by ahmad hendeh, Jun 7, 2018.

  1. XMG

    XMG Company Representative

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    That's not strictly true, there is a 150W default PSU which Clevo sells with the chassis. If you want to sell a different one to customers then its more complicated.

    Do you have performance figures for the difference between 150W and 180W PSU with the new CCC, meaning throttling is only firmware dependant? Serious question, we need to collate as much info as possible still.

    The revised notebookcheck review of the Key 15 was with the new and non-throttling CCC but still with 150W PSU if I remember correctly.

    The price difference between PSUs is really not a big deal.

    GPU config is a different topic of course.
     
    Last edited: Jul 11, 2018
  2. Papusan

    Papusan JOKEBOOKS = That sucks! Dont wast your $ on FILTHY

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    Before you post claims, always know what’s stated in Clevo’s service manuals. F.eks what PSU is put in the Barbone package.
     
  3. ahmad hendeh

    ahmad hendeh Notebook Evangelist

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    Sorry, I assumed it was solely the reseller choice when it came to PSU as EVOC sold it with the 180W one.



    It will throttle no matter what when pushed hard enough. The PSU won't make a difference unless the EC is changed to allow the power draw to exceed 150W.



    This guy isn't getting CCC throttling(probably due to new CCC) yet is still getting horrible throttling.this is the fast preset, other presets might be worse.


    A P955 that can draw 180W doesn't exist. As the EC caps the power draw at 150W.

    A P955 with a 150W PSU will perform identically to a P955 with a 180W PSU as both systems can only draw 150W anyway

    All we can compare to is the competition that can draw more.(stock results)
    Screenshot_20180712-010710_Chrome.jpg

    Alot of people are getting 14K flat on the graphics score(the guy with the Q6 here + the Slovenian review of the Q6) this puts the 1070 VS 80W 1070MQ defect at 20% instead of 13%.



    Even if we look at max power draw we can see a 150W PSU is not sufficient.

    Q6(I7 8750H+1070MQ 80W): 150W
    Q5(I7 7700HQ+1070MQ 80W) : 166W
    Aero 15x(I7 8750H+1070MQ 90W) : 173W
    GX501VS(I7 7700HQ+ 1070MQ 90W) : 173W
    RB2018(I7 8750H+1070MQ 90W) : 179W
    GS65(I7 8750H+1070MQ 80W) : 182W

    The EC is not allowing the hardware to draw the amount of power it needs.



    Can you link me the revised review ? Only seeing the original one .

    I think resellers can request it from clevo with a higher PSU(which is useless due to EC limitations)

    I'll edit my original post as it seems it's not so black/white when it comes to who is to blame for PSU
     
    Last edited: Jul 11, 2018
  4. XMG

    XMG Company Representative

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    @ahmad hendeh - no problem, it's not always as clear cut as it seems. That was my point though, no matter which PSU the chassis would ship with and even if resellers had an option, it wouldn't make any difference.

    Also it should be noted that a 150W PSU is only rated as that, this doesn't mean that it will only supply 150W. You can pull more than 150W from it in the same way that you can pull more than 180W from that model and more than 300W from that model.

    The original review is still only in German, they usually translate it but doesn't seem to have happened yet.
    If you open this in Chrome and auto translate you can se the comments; https://www.notebookcheck.com/Test-Schenker-Key-15-Clevo-P955ER-Laptop.308452.0.html

    "Update: Cause of GPU throttling found. Updating the Control Center fixes the problem."

    Update 23.06.18: As has been proven by prolonged trial and error, the new version of the Control Center is guilty of GPU throttling. If you "kill" the program via Task Manager, the GeForce GTX 1070 Max-Q behaves normally in The Witcher 3 and works with active Turbo (~ 1.291 MHz), which is very well recognized on the graph and screenshots. Since the XMG A517 and the XMG A707 are affected in addition to the Key 15 , the software bug that causes the GPU throttling currently seems to apply to all Clevo barebones with a pre-installed Control Center.

    [​IMG]
    Active Control Center (GPU throttling)
    [​IMG]
    Disabled Control Center (no GPU throttling)
    Update 07.07.18: Schenker has provided us with an updated Control Center, with which the GPU throttling no longer occurs (tested on the XMG A707). We therefore exclude the original devaluation."

    As a result, the original text is all still in the review but they added lots of updated text to explain what was going on, plus they revised the performance and temperature scores accordingly.
     
  5. Meaker@Sager

    Meaker@Sager Company Representative

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    Plus 150w means to the machine, it may pull as much as 170-180w from the wall to supply this and still be in spec.
     
  6. ahmad hendeh

    ahmad hendeh Notebook Evangelist

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    The system doesn't draw more than 150W.

    It's an EC wall. Even if the 150W PSU can supply more than 150W
     
  7. Meaker@Sager

    Meaker@Sager Company Representative

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    From the brick but not from the wall, you add brick losses onto the machine draw.
     
  8. Dennismungai

    Dennismungai Notebook Evangelist

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    I now have the 200W PSU from Eurocom. Running benchmarks as we speak.
     
    sicily428 likes this.
  9. Dennismungai

    Dennismungai Notebook Evangelist

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    And here is Assassins Creed Origins on the Q6 and with a 200W PSU after a liquid metal application and a 100mV undervolt across all domains.



    Temps, particularly on the CPU are still wanting, although the throttling seems to be eliminated.
    Currently uploading more clips from Battlefield 4, BF1, et al.

    cc @Danishblunt @Prema @Meaker@Sager this is what I meant by the statement: LM alone may not be enough to satisfy the cooling requirements for this chassis.
     
  10. Danishblunt

    Danishblunt Notebook Prophet

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    99c :'D

    I am amazed how much the game lags. Ive played the game fluidly on a 6700HQ + GTX 980M system, while you have stuttering and 99c.

    If you were to play games like AC:O, the notebook wouldn't last 6 months before melting down.
    Good job clevo.
     
    Last edited: Aug 5, 2018
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