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    E1505: With latest BIOS, CPU not scaling @AC

    Discussion in 'Dell' started by postmortem, Mar 21, 2007.

  1. postmortem

    postmortem Notebook Consultant

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    Hello,
    Has anybody noticed that CPU won't scale back to 1GHz when on AC and there's no load? Both in XP and Vista. Regardless of which plan is selected in power options.
     
    postmortem, Mar 21, 2007
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  2. wella

    wella Notebook Consultant

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    I am not sure what you mean by no load. But I also noticed that my new I6400 (or call it e1505) doesn't reduce the processor speed even when I am running it on battery (although I have it set in the power options) which is weird.
     
    wella, Mar 21, 2007
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  3. postmortem

    postmortem Notebook Consultant

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    I mean CPU usage, as a % of time that CPU spends doing calculations. Which is opposite to CPU idle %.

    Usually power plans keep CPU at low speed until some threshold usage is reached, often 80%. As soon as CPU returns to low utilization again, it goes back to low speed.
     
    postmortem, Mar 21, 2007
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