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    SSD poor performance? help needed :(

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by hteng, Aug 2, 2011.

  1. hteng

    hteng Notebook Consultant

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    Hi all,

    I've just put in my new intel 510 120GB into my m17x r3 (i7 2630, 6970m). I had problems with port 0, so i moved the SSD to port 1. I also did a clean install of windows 7.

    follow the tweaking guide in
    http://forum.notebookreview.com/sol...sd-performance-tips-underperforming-ssds.html

    http://forum.notebookreview.com/sol...-series-4-5-965-chipsets-stamatisx-tweak.html

    i did not disable restore points as i use that sometimes.

    [​IMG]
    my results were somewhat disappointing, i see some people with older systems has better 4k read/writes than me and my seq read/writes should be in the 400s?

    i also installed intel rapid storage technology, it shows the ssd is at 6Gpbs transfer, installed intel toolbox, it says the ssd is in optimal performance

    i did the jjb power management tweak and got BSODed, so i don't want to touch that.

    please advise, thanks!

    edit: i get completely different results from AS SSD @_0

    [​IMG]
     
    hteng, Aug 2, 2011
    #1
  2. helmeston

    helmeston Notebook Consultant

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    the alienware m17xr3 doesn't always have sata III, it work for some , other get sata II
     
    helmeston, Aug 2, 2011
    #2
  3. ValkerieFire

    ValkerieFire God Follower

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    The M17x R3 supports SATA III on both internal bays, but some people report bay 1 slows to SATA II sometimes.

    Your speeds are obviously SATA III speeds, SATA II will not go over 300mbps.

    Try running Crystal with compressible data. Select File, Test Data, and switch to zeros rather than random.

    Then let us know what happens.
     
    ValkerieFire, Aug 2, 2011
    #3
  4. hteng

    hteng Notebook Consultant

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    here's with zero data.
    [​IMG]

    seems to be better but I noticed in Device manager, my CPUs all had driver problems (yellow exclamation marks) i was concerned so i undo the Stamatisx Tweak (intelppm, processor).

    now i'm back to the first screenshot in my first post :/
     
    hteng, Aug 2, 2011
    #4
  5. Syberia

    Syberia Notebook Deity

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    3000 gbps / 8 (bit > byte conversion) = 375 mbps. Your second benchmark almost looks like a Sata II limitation.
     
    Syberia, Aug 3, 2011
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  6. hteng

    hteng Notebook Consultant

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    that would suck if that's the case but it's clearly showing 6gbps under IRST though :(

    and can you explain the disparity between CDM and AS SSD?
     
    hteng, Aug 3, 2011
    #6
  7. Peon

    Peon Notebook Virtuoso

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    Only in theory. 8b/10b encoding means you're down to 300 megabytes/sec even before factoring in other overhead associated with the SATA protocol.
     
    Peon, Aug 4, 2011
    #7