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    CPU not throttling down

    Discussion in 'HP' started by theiceman, Aug 10, 2008.

  1. theiceman

    theiceman Newbie

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    i just bought HP Pavillion DV2852tx (2700 series), running Vista Home Premium Edition w Service Pack 1.
    I experienced the battery life is not good, with lite-medium usage (playing mp3 while reading code using visual studio), it only last for almost 2hours. I was curious, then i checked the CPU Speed in the system information (shortcut Windows+Break), the Core 2 Duo T8100 stays at the actual speed (2.1Ghz), it doesn't throttling down while the cpu usage is very small (less than 10% while playing mp3). I think this is the cause why the battery life is so bad.

    I already set the power scheme to power saver, and nothing i could do.
    Is there some extra setting needed to enable the SpeedStep allowing cpu to throttling down?

    thanks,
    Edo
     
    theiceman, Aug 10, 2008
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  2. Infamous22

    Infamous22 Notebook Deity

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    Which battery do you have? just wondering...
     
    Infamous22, Aug 10, 2008
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  3. theiceman

    theiceman Newbie

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    standard battery? i don't know,maybe 6-cells?
    anyway the problem is the clock stays @2.1Ghz , wether i'm doing something or nothing...
    anyone experienced this?
     
    theiceman, Aug 10, 2008
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  4. Infamous22

    Infamous22 Notebook Deity

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    Well standard battery should only get about 3 hours. That's besides the fact though.
     
    Infamous22, Aug 10, 2008
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  5. R4000

    R4000 Notebook Virtuoso

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    Have you verified with another app (like CPU-Z) that the cpu is not throttling?

    On a side note: The only thing that comes up for me with the Windows+Break shortcut is the basic system info, which just lists the static rated speed of the cpu......
     
    R4000, Aug 10, 2008
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  6. Infamous22

    Infamous22 Notebook Deity

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    Infamous22, Aug 10, 2008
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  7. Jstn7477

    Jstn7477 Sam I Am

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    I second that. The "System" page in Windows Vista only displays the maximum frequency of your processor. You can lower the CPU frequency (by multiplier) and undervolt your processor by using RMClock. Search the forums for "The Undervolting Guide", as this will help you get the most battery life out of your machine.

    -J.B.
     
    Jstn7477, Aug 10, 2008
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  8. theiceman

    theiceman Newbie

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    thx, i haven't check with CPU-Z, will check later and tell u the response.
    anyway i also check with dxdiag, is it display the actual clock or just the maximum freq?

    Thanks
     
    theiceman, Aug 10, 2008
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  9. Infamous22

    Infamous22 Notebook Deity

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    It's not real time. It just lists the internal components.
     
    Infamous22, Aug 10, 2008
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  10. theiceman

    theiceman Newbie

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    Guys, i checked with CPu-Z, the cpu clock is throttling down, thanks,
    i thought the information in Windows+Break gives the real clock,but unfortunately it's not the same as windows xp ha3..
    btw, it's only throttling down minimum at 50% at it's max. clock? can it be lower than that?
    Thanks
     
    theiceman, Aug 11, 2008
    #10