Strange Intel Core i3 370M GPU clock behavior! Help me resolve, please!

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I bought a GIGABYTE i1520M laptop and I experience some strange GPU clock behavior. The GPU is Intel HD Graphics and I found out the GPU is integrated on the CPU, which is Intel Core i3-370M. When i play games (like this one) or another less demanding games (like GTA:SA:MP), the framerate (FPS) is too low. Here comes the strangest part: When I unplug the laptop from the AC adaptor, I experience high framerate boost! I dont know what the hell is going on, but seems like the GPU power management seems to be somehow broken (altrought it is a factory default!). Seems like theres normal GPU clock, when running on the battery power, but after connecting it back, to the AC adaptor, the frequency (or voltage) drops in few moments of GPU usage. The power management in Intels GPU tool seems to be set well (both AC and DC power are set to Maximum performance). The questions are: 1) What causes this behavior? 2) How to "overclock" it back to normal, when connecting the adaptor. Feel free to comment. Could somebody with the sam CPU (or laptop) confirm this? If there will be negatives, I am willing to send it to warranty repair.

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2 Responses to Strange Intel Core i3 370M GPU clock behavior! Help me resolve, please!

  1. grenames says:

    @dakisa91 Actually i have both AC AND DC modes set to Max. Performance in Intel mgmt tool that is accessible from desktop.
    after plugging AC back in, it runs as smooth as on DC, but then, after about half a minute it goes back to heavy lag…

  2. dakisa91 says:

    Just review your power management , if its not on POWERPLAY when plugged , then you are propobly on power save mode witch will UNDERCLOCK your gpu+cpu and you expirience heavy lag ,

    again , check your power options , or battery options , or what ever its called

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