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    My clock speed throttling by 50% on battery

    Discussion in 'Alienware 18 and M18x' started by Spartan@HIDevolution, Jun 1, 2015.

  1. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    With my stable 4.1 GHz overclock, if I switch to battery mode I notice the speed jump from 4.1 GHz to 1998 MHz back and forth........ what gives?

    here are my XTU settings:

    [​IMG]
     
    Spartan@HIDevolution, Jun 1, 2015
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  2. Cryzer

    Cryzer Notebook Consultant

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    Isn't... isn't that normal? Try to do a stress test on battery and see if that happens there too. Mine shows the clocks always at full speed (on idle) even through the temps are not increasing, etc.
     
    Cryzer, Jun 1, 2015
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  3. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    oh on Idle the speed is @ 4.1 GHz no problem, the problem is the stress test once I start wPRIME on 8 threads the speed drops by half. Doesn't happen on AC power always holds a stable 4.1 GHz on all 4 cores
     
    Spartan@HIDevolution, Jun 1, 2015
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  4. TBoneSan

    TBoneSan Laptop Fiend

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    All laptops have a limit on battery. There is only so much power a battery can provide.
     
    TBoneSan, Jun 1, 2015
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  5. GodlikeRU

    GodlikeRU Notebook Deity

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    As @TBoneSan said battery just can't give you 330W power as you power supply gives to maintain clocks ;)
     
    GodlikeRU, Jun 2, 2015
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  6. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    Thanks guys! y'all are a great source of info :D
     
    Spartan@HIDevolution, Jun 2, 2015
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  7. TurbodTalon

    TurbodTalon Notebook Virtuoso

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    Hey Matrix Leader6, looks like you're having a lot of fun with your laptop. As others have hinted to, the battery on these beasts isn't good for anything other than menial tasks like watching a movie or browsing the web. You may get 10 - 15 minutes of degraded gaming on the battery, which you're beating the hell out of in the process.
     
    TurbodTalon, Jun 2, 2015
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  8. Spartan@HIDevolution

    Spartan@HIDevolution Company Representative

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    ahh I see, so this is basically s desktop that is portable for web surfing when needed not for full on power while on battery :D no issues it's on my desk 99.9% of the time anyway
     
    Spartan@HIDevolution, Jun 2, 2015
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  9. TurbodTalon

    TurbodTalon Notebook Virtuoso

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    Correct. The battery can't stand up to that kind of a power draw. It is more of an insurance policy in my opinion.
     
    TurbodTalon, Jun 2, 2015
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  10. D2 Ultima

    D2 Ultima Livestreaming Master

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    Well for you, as far as I know, you should be able to use your mux and switch to iGPU only for decent battery life.
     
    D2 Ultima, Jun 3, 2015
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  11. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist®

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    Yeah, I can get between 4.5 - 5.0 hours running on Intel HD Graphics and no CPU overclock, AlienFX turned off on the M18xR2. I don't need to, and don't really care, but that option is there in the rare event I need to.
     
    Mr. Fox, Jun 3, 2015
    #11