How To Improve SSD performance on Intel Series 4, 5 and 965 chipsets (Stamatisx Tweak)

Discussion in 'Solid State Drives (SSDs) and Flash Storage' started by stamatisx, Sep 11, 2010.

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  1. stamatisx

    stamatisx T|I

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    The problem
    SSDs display low 4K random reads and writes, low access times and slow performance on Intel Series 5 chipset based laptops.

    Comparisons with a different chipset
    Hardware used:
    SSD - Intel X25-E 64GB
    Laptop #1 - Dell Alienware M17x R1, chipset NVIDIA MCP79
    Laptop #2 - Dell Alienware M17x R2, chipset Intel PM55

    R1 with the Nvidia chipset
    ______AS SSD______________CMD_______
    [​IMG][​IMG]


    R2 with Intel chipset
    ______AS SSD______________CMD_______
    [​IMG][​IMG]

    Note that the read access times are 2.86x times slower and the write access times are 3.51x times slower on the R2 compared to the R1

    Real world performance of the SSD before the tweak

    MS Office 2010 Professional Plus
    Time to extract:_____ 0 min 44 sec
    Time to fully install:___4 min 56 sec
    Time to fully uninstall:_2 min 0 sec

    Visual Studio Ultimate 2010
    Time to install:____16 min 56 sec
    Time to uninstall*:_3 min 56 sec

    MSE
    Scanned Items:_116,810
    Time:__________5min 9sec



    **Tweak**
    For increased SSD performance apply the following two registry changes:

    Code:
    [B]HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Processor
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Intelppm
    
    [/B]Change on both the Start from 3 to [B]4[/B]
    Reboot



    AFTER THE TWEAK


    Real world performance difference

    MS Office 2010 Professional Plus
    Time to extract:_____ 0 min 43 sec
    Time to fully install:___3 min 57 sec
    Time to fully uninstall:_0 min 47 sec

    Visual Studio Ultimate 2010
    Time to install:____7 min 43 sec
    Time to uninstall*:_2 min 46 sec

    MSE
    Scanned Items:_116,819
    Time:__________4 min 55 sec


    Increased Performance
    _______AS SSD____________CDM________
    [​IMG][​IMG]



    Idle temperatures
    ___Before tweak________After tweak____
    [​IMG][​IMG]


    Turbo Boost
    ___Before tweak_____After tweak____
    [​IMG][​IMG]


    Notes
    • If you have the option to disable the C states from you BIOS there is no need to apply this tweak (verified by user saturnotaku)
    • If you have an extreme processor like i7 920XM or i7 940XM you can use the ELEET program in order to bypass the Turbo Boost lock (by user iemie)
    • Results will vary according to your CPU, BIOS and SSD

    Restore the default settings

    To undo the changes, set those two registry values back to default (3)

    **In case where reverting back to default values didn't work, also apply the following:
    Code:
    Open the [B]Device Manager [/B]
    go to [B]Processors[/B] 
    uninstall all the CPU icons that appear with the yellow exclamation mark. 
    right click on the Processors Icon and press "Scan for  hardware changes" 
    this will reinstall the CPU and you will have  everything back to the way it was
    


    Known Issues
    • Increases 2-5 C temperatures, depends on the laptop
    • In some laptops it disables Turbo Boost
    • Decreases battery life (will vary from laptop to laptop)

    For a more detailed analysis visit here:
    How To: Improve Low SSD Performance in Intel Series 5 Chipset Environments | StorageReview.com

    Thanks and credit to Phil and the rest of the forum members who contributed to this and the original thread.
    Thanks and credit to Batboy for linking this to a sticky thread on the Alienware M17x subforum.

    If you feel that this tweak does not cover you, don't panic, try JJB's approach.

    More Tips

    To further improve your SSD's performance and longevity read the following thread:
    http://forum.notebookreview.com/har...sd-performance-tips-underperforming-ssds.html


    **Disclaimer**
    Apply any suggested tweaks with caution and on your own responsibility


    *** Warning: Crystal Disk Mark with 5 runs of 1000MB file size writes several gigabytes to your SSD. If you set the file size to 3x 50MB you can still measure improvements while causing less wear. ***
     
  2. Phil

    Phil Retired

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    I only used this line:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Intelppm

    Change on "Start" from 3 to 4.
     
  3. anseio

    anseio All ways are my ways.

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    This tweak yielded significant results for me. Machine stats in my sig. Windows default chipset. First image is after JJB's tweaks. Second image is after the tweak on this page.
     

    Attached Files:

  4. stamatisx

    stamatisx T|I

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    Thank you Phil for the thread, it is actually a really good thought

    Anseio, it's a really nice improvement indeed.
     
  5. trvelbug

    trvelbug Notebook Virtuoso

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  6. stamatisx

    stamatisx T|I

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  7. trvelbug

    trvelbug Notebook Virtuoso

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    thanks!
    got worried there for a while...
     
  8. anseio

    anseio All ways are my ways.

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    Would those correllate to the loss of the TurboBoost functionality?
     
  9. trvelbug

    trvelbug Notebook Virtuoso

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    i lost all turbo functionality with the tweak. it did help my momentus xt a bit but the price of losing TB was too big a price to pay.
    im not sure if this has affected others with a pm55.
     
  10. stamatisx

    stamatisx T|I

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    Yeah I agree, turbo boost is important. Fortunately this tweak doesn't affect all laptops the same way, I will update the first post eventually for more details
     
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