¿Best upgrades for M18X-R2? [CPU - GPU - RAM - Cooling] Best for the buck.

Discussion in 'Alienware 18 and M18x' started by [Nikos], Apr 1, 2015.

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  1. [Nikos]

    [Nikos] Notebook Evangelist

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    This is the video of the 14893 score. Check power consumption :p
     
  2. [Nikos]

    [Nikos] Notebook Evangelist

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  3. Prema

    Prema Your Freedom, Your Choice

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    Those clocks are not "matched"...the P1 is only 1183 while the P0 is 1272...P1 also needs to be 1272 or you will only get full clocks, but not full GPU utilization.
    You added the 145Mhz on top of the base clock instead on top of the stock 3D clock.[​IMG]
     
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  4. [Nikos]

    [Nikos] Notebook Evangelist

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    Hello!
    Thanks for the info, after I posted that I did what you are saying. I guess I posted it wrong the other day. Anyway tomorrow I will upload all the info I can obtain from my system to let you or others to check if I'm doing something wrong and the overclocking is 100% fixed. I hope I'm doing something wrong and have overclock back
     
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  5. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

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    Good catch!
    This is where my line of questions were going in a previous post, but I missed seeing the mistake in your screen shots like Prema did.

    I am optimistic now, because the "throttling" you were seeing now appears to be your GPUs doing exactly what you set them to do. There is no way to stop the vBIOS from sending the GPUs to P1 states, but if P1 is identical to P0 it will have no effect on behavior. We used to have to do this with 580M also. I tried this several times back when I was still attempting to get 980M SLI to work correctly in my M18xR2 and it did not work correctly. My GPUs were also throttling below P1 under load when overclocked. The progress that @Prema and @j95 have made since then is excellent. I am expecting a good report tomorrow once you have the P-states equalized.

    If that works, @Prema might need to mod your vBIOS to increase P1 voltage to allow you to overclock the core higher... I am assuming that modding P1 voltage might be possible. Otherwise, your max stable overclock will be limited to what is stable at whatever P1 voltage has been set. It would be nice if there was a way to adjust P1 voltage like we can P0, but it appears to be fixed and would need to be flashed if there is no way to unlock the P1 voltage slider.
     
  6. Prema

    Prema Your Freedom, Your Choice

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    From what I have been told, overvoltage doesn't drop to P1 once core and vRAM are matched.
    It holds 1.2v without a problem.

    EDIT: With my v1.1 Mod that is.
     
    Last edited: May 1, 2015
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  7. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

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    Oh wow, that's fantastic news. That should greatly simplify things.
     
  8. [Nikos]

    [Nikos] Notebook Evangelist

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    Going higher than this clocks is not working for me or I think so :S

    Prema VBIOS:

    [​IMG]


    NVinspector no overclock just both Pstates matched:
    GTX 980M (0)
    [​IMG]
    [​IMG]
    GTX 980M (1)
    [​IMG]
    [​IMG]


    Test with those settings (no throttling at all):



    Test 2 (same clocks / +137.5 mV)

    GTX 980M (0)

    [​IMG]
    [​IMG]

    GTX 980M (1)
    [​IMG]
    [​IMG]

    Test with those settings (no throttling at all - voltage going down to 1.068):

     
    Last edited: May 1, 2015
  9. Prema

    Prema Your Freedom, Your Choice

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    You again put the P1 clocks wrong...P1 core clock has to match the P0 Turbo clock (1126) and not 3D base clock (1038) otherwise the voltage and utilization will drop.
    Also hit apply defaults before making any changes (inspector has a few bugs reading the vBIOS values correctly).
     
    Last edited: May 2, 2015
  10. [Nikos]

    [Nikos] Notebook Evangelist

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    This post is not updated right now the latest test are located in the other thread (980M SLI upgrade). Sorry for that I will update this one as soon as I can. Thanks for the update :p
     
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