[XPS M1330] CPU Throttling at full load

Discussion in 'Dell' started by KiD0M4N, May 21, 2008.

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  1. KiD0M4N

    KiD0M4N Notebook Guru

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    Hi all-

    I am a recent owner of a XPS M1330 system.

    A brief config recap:

    - T9300 (2.5Ghz 6MB L2 Cache)
    - 4GB (Hynix)
    - 320GB Toshiba 5400 RPM
    - 8400M GS
    - WLED screen

    Could you guys (doesn't matter if you don't have a M1330, I would love to see M1530, Inspirons, Lattitudes, etc.) do this little test for me:

    - Download RMClock (http://cpu.rightmark.org/download/rmclock_235_bin.exe)

    - Download Orthos (http://sp2004.fre3.com/beta/orthos_exe_20060420.cab)

    Start RMClock (go to the monitoring tab) and start a 'Blend Orthos Run' like so:

    [​IMG]

    After around a 2 minute run:

    [​IMG]

    Let it run for a while (say 30 minutes) and see if the CPU starts throttling (it should not.... in any case... the laptop should be able to run its rates speeds without any kind of throttling.)

    Regards,
    Karan
     
  2. lennynjnets

    lennynjnets Notebook Consultant

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    I have the same system and the same "problem". CPU is always at 2.5GHZ (Playing solitaire or play a dvd). Actually, it turns out that the graphics card (8400) down clocks to save battery life instead of using speedstep to down clock the cpu.
     
  3. KiD0M4N

    KiD0M4N Notebook Guru

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    Neither playing a DvD or solitaire puts any sort of load on the CPU or the GPU.

    I am talking about the CPU overheating and reducing its speed (from the spec 2.5Ghz) because of high temperatures.
     
  4. The_Observer

    The_Observer 9262 is the best:)

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    I think the speed reduction when CPU over heat is a standard feature is many laptops.
     
  5. KiD0M4N

    KiD0M4N Notebook Guru

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    But then why advertise/sell a laptop with a 2.5Ghz CPU when it effectively boils down to a 2Ghz processor under load?
     
  6. flipfire

    flipfire Moderately Boss

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    can you show when it thermally downclocks?
     
  7. KiD0M4N

    KiD0M4N Notebook Guru

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    Sure thing. I am sure this is present in all models, just wanna know at what speeds of the CPU it is more prevelent.

    I wanted to post this fast, hence stopped it and took a screenshot.

    Now let me start it off again.
     
  8. KiD0M4N

    KiD0M4N Notebook Guru

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    [​IMG]

    100C temps.... woot, thats toasty... ofcourse, thats unreasonable load on the CPU (Orthos Small FFTs) but still...
     
  9. flipfire

    flipfire Moderately Boss

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    Over 90c is a red flag

    Double check your cooling system.
    -Update BIOS to latest version
    -heatsink is seated properly
    -fans are fully operational and arent clogged with dust.

    Theres no reason it should go that hot.
     
  10. Kreeeee

    Kreeeee Notebook Evangelist

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    My t9300 with 8400m m1330 never reaches over 48 degrees under orthos or orthos with full gpu load.
     
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