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    M1330 processor under clock problem

    Discussion in 'Dell XPS and Studio XPS' started by psychrometric, Mar 19, 2008.

  1. psychrometric

    psychrometric Notebook Enthusiast

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    My M1330 under clocks the CPU all the time when gaming (Pro Evolution Soccer 2008) and it lags A LOT !

    Intel thermal analysis tool shows the frequency going even under 800 MHz (as low as 300) while the temperature is around 70 degrees C. My GPU temp according to RivaTuner is 93 – 104 degrees C.

    Power Plan is set to high Performance and I don’t overclock. Is there anything I can do for this problem ?

    My M1330 specs.
    VISTA HP SP1
    T7500 2.20GHz,
    2 GB RAM
    8400GS - 174.31 drivers from dell
     
  2. kuncheesh

    kuncheesh Notebook Evangelist

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    Have you messed up with the BIOS lately, go to the bios and make sure that intel speed step and dynamic acceleration are turned on.
     
  3. psychrometric

    psychrometric Notebook Enthusiast

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    Thanks for replying ! They are both set to ON in bios..

    The problem happens when the CPU is under load for some time (eg. gaming) even though the temperature is not that high …

    This is really annoying as the game becomes unplayable. I found another thread about the GPU under clocking, but in my case it is the CPU and it under clocks A LOT ! Not even close to 2.2 GHz.

    I have bios version A06. Does anyone else have the same problem ? Is anyone able to play the same or similar game on M1330 ?
     
  4. psychrometric

    psychrometric Notebook Enthusiast

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    This is my first notebook and having these problems I experimented a little.
    Even though I couldn’t identify it in the first place, it looks like it was a heat problem after all.

    Using my DIY cooling pad, RMClock and Rivatuner, I now have great control of my laptop temperatures and my processor never locks at this underclock situation. I now think that my gpu was underclocking to.

    Right now I am surfing and wmp playing in the backround and temps are 37/58 for cpu/gpu respectively. It was around 55/75 before. Even without the cooler my laptops runs cooler than before with those two great and free programs.

    I can play PES2008 for hours without problems. Max temps are around 96 for the gpu when gaming or running 3dmark.

    I have seen a lot of discussion about cooling in the forums lately and I now know how important it is !
     
  5. trebuin

    trebuin Notebook Evangelist

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    I've talked about this prob before in the forums. The M1330 will downlock the GPU, not the CPU, when the temp gets too high. It drops initially to the nvidia 3d low power clock settings and then to 2d clock settings if the temp doesn't drop. This basically happens right away.

    I ended up solving this using Rivatuner to change the clock settings of all 3 profiles to the same settings. This prevents the downclocking. The system will still have one more failsafe that you cannot change and it shouldn't hit this unless you overclock your GPU at 450 clock / 700 mem, which is 50/100 points over default.

    To do this right you have to go into power user settings and set the following:
    Rivatuner \ Nvidia \ Overclocking
    enablelowpower3dcontrol = 1
    Rivatuner \ Overclocking \ Global
    Maxclocklimit = 2BC
    Showroundedclocks = 1

    From here go into Main and system settings under driver settings...the little arrow

    Do the following:
    enable driver level overclocking
    Detect settings now...you don't need to reboot.
    Leave link clocks checked
    Select performance 3d
    Set core to 400 and memory to 600...should already be there.
    Hit apply
    Hit save under overclock profile settings to create a profile. Name it something simple and memorize it. default works well. This is case sensitive as well.
    Go to low power 3d.
    Core again to 400 or as close as you can get
    Memory to 600 or as close as you can get
    Apply
    Save it again...but save it as the same name. This merges the two profiles.

    Do the same thing again for 2d power settings. After saving it the third time, your clock will stay the same and only will drop when the chip reaches that fourth fail safe.

    Check to make sure you clocks are changing as well. You can use the monitoring tools or hit apply and then ok. If the clocks change from other than default back to default, the clocking isn't taking. In this case, make sure you have the latest (currently around 174) drivers, reboot, then uninstall rivatuner. Reboot, then reinstall rivatuner. then try again. The reboots are necessary as rivatuner does not like you upgrading drivers on it. You'll have to do that every time you update your drivers.

    Hope this helps.

    Treb
     
  6. psychrometric

    psychrometric Notebook Enthusiast

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    Thanks for taking the time to explain everything in detail. It helps a lot setting up rivatuner. I have now created a few profiles that I like to change according to use. My card steps up and down nicely and I can set the limits !

    In my case, I had a lot of lag when gaming for long periods of time. I noticed about processor undercklocking by watching Intel TAT while playing PES2008. I guess the gpu was overheating first and stepping down, then the load to the cpu was getting too much and it was overheating/stepping down too. Something similar is on another thread about cpu underclocking under intel TAT 100% load.

    My conclusion at this point is that the most important thing when gaming is temperature control and my cooling pad does a really good job. Rivatuner and rmclock help when I am not using it on the desk.

    One thing I noticed is that my built in fan goes on maximum (around 6000rpm) when gpu temp is 96 degrees and the temperature drops quickly. I would like it to max a little earlier. Is this possible without risking damaging my m1330 ?
     
  7. Bombagi

    Bombagi Newbie

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    Use I8kfanGUI for fan control on the cpu.