Odd poweradapter lag

Discussion in 'macOS' started by Baudtler, Apr 20, 2013.

  1. Baudtler, Apr 20, 2013
    Last edited: Apr 20, 2013

    Baudtler macrumors newbie

    Joined:
    Apr 20, 2013
    #1
    Hello hello, this would be my first thread in here. I don't know where else to go with this and after some extensive googling around I've found that my issue is rather rare as no one else has spoken of it so far.

    My issue is this; When I play games on my Macbook (Mainly World of Warcraft causing this issue), and I play on battery there's no issues with graphical lag at all. Everything runs smoothly - but once I plug in my poweradapter I easily see FPS drops from 60 to 13.
    For some reason it seems that my macbook is switching to a lower processing power.
    I've only seen people with the opposite issue, that they're slow on battery and fast on the power adapter - My issue is quite odd.

    Any thoughts? All ideas are welcome.

    Edit:
    Here's some specs.

    It's an early 2011 Macbook Pro 15"
    Processor 2 GHz Intel Core i7
    Memory 4 GB 1333 MHz DDR3
    Graphics AMD Radeon HD 6490M 256 MB
    Running Mac OS X Lion 10.7.5
     
  2. simsaladimbamba

    Joined:
    Nov 28, 2010
    Location:
    located
    #2
    What exact MacBook and Mac OS X version do you use?
     
  3. Baudtler thread starter macrumors newbie

    Joined:
    Apr 20, 2013
    #3
    Oh, right. Sorry -

    Here we go:
    It's an early 2011 Macbook Pro 15"

    Processor 2 GHz Intel Core i7
    Memory 4 GB 1333 MHz DDR3
    Graphics AMD Radeon HD 6490M 256 MB
    Mac OS X Lion 10.7.5
     
  4. Bear macrumors G3

    Joined:
    Jul 23, 2002
    Location:
    Sol III - Terra
    #4
    Have you checked that the energy saver preferences are set up correctly? It could be that the settings for when plugged in are not what you want.
     
  5. Baudtler thread starter macrumors newbie

    Joined:
    Apr 20, 2013
    #5
    Yep

    Yea, I fiddled around with them and even restored them.
    I disabled the power saving mode as well, so it always runs on the most powerful mode.
    No change.
     
  6. justperry macrumors 604

    justperry

    Joined:
    Aug 10, 2007
    Location:
    In the core of a black hole.
    #6
    Reset SMC might help, and when your at it reset PRAM/NVRAM as well.
     
  7. Baudtler thread starter macrumors newbie

    Joined:
    Apr 20, 2013
    #7
    Did the SMC a while ago to try and fix it. Haven't tried NVRAM or PRAM yet. I'm not sure it'd do the big difference though. Worth a shot none the less.
     
  8. Gav2k macrumors G3

    Gav2k

    Joined:
    Jul 24, 2009
    #8
    Check and log the temperature during gaming.

    The reason I say this is whilst you are on battery you won't be running he processor at its maximum.

    When you plug into the mains the processor can clock to its maximum and apply turboboost. The issue with this is you then hit the max temp and it throttles the CPU and gpu down significantly lower than they are when running on battery.
     
  9. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #9
    PRAM/NVRAM has nothing to do with these issues. Resetting it will not help.

    About NVRAM and PRAM
     
  10. Baudtler thread starter macrumors newbie

    Joined:
    Apr 20, 2013
    #10
    As previously stated, I've disabled the switching between turbo boost so it's always running at max power.
    The lag occurs instantly when plugging in the power. It's a software thing, I'm almost certain. As if it thinks that it's supposed to slow down.
     
  11. Gav2k macrumors G3

    Gav2k

    Joined:
    Jul 24, 2009
    #11
    Have you confirmed it's not clocking down as I remember it does on battery regardless of settings. Also turboboost is only avalible when ac power is detected and the thermal conditions of the CPU is right
     
  12. Baudtler thread starter macrumors newbie

    Joined:
    Apr 20, 2013
    #12
    I have no idea of how to do that.
     

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