Hard drive speed capped on new 751

Discussion in 'Acer Aspire One' started by Phil72, May 24, 2009.

  1. Phil72

    Phil72

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    I love my 751 sofar, but noticed something strange with the hard drive when running HDTune.

    The hard drive seems to be capped at 45 MB/sec. Normally the average transfer rate of this drive is 52MB/sec.

    In 751
    [​IMG]

    Normal speed:
    [​IMG]

    Is this on all 751s?
    Does anyone know why or an solution?

    Thanks!
     
    Phil72, May 24, 2009
    #1
  2. Phil72

    dendielie

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    I'm not sure but It could be because of the chipset.It only has pata and the hard drive is sata,so maybe the pata to sata converter is the culprit? :|
     
    dendielie, May 25, 2009
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  3. Phil72

    Phil72

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    Hmm interesting. But even PATA can do much more than 45MB/sec...
     
    Phil72, May 25, 2009
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  4. Phil72

    dendielie

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    yea maybe a fault or limitation in the controller?You could try to remove the pata to sata converter and try a pata hard drive on it?
     
    dendielie, May 25, 2009
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  5. Phil72

    Phil72

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    Actually you may be onto something: Dell Mini 10 and MSI U115 also use the same chipset: Intel US15W Poulsbo. They both suffers from slow hard drive performance. Notebookjournal measured 39MB/sec sequential read for both. So maybe this limitation is a limitation of the US15W chipset.

    PS. I tried reinstalling SATA drivers and controllers, no result.
     
    Phil72, May 25, 2009
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  6. Phil72

    dendielie

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    wow that would really suck...only 40MB/s max :shock: so only an ssd would improve performance with their access times :(
     
    dendielie, May 25, 2009
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  7. Phil72

    greenail

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    mine looks like your 2nd chart, running win 7 and installed the intel chipset drivers from the acer site.
     
    greenail, Jun 21, 2009
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  8. Phil72

    zicada

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    Same here, not noticing any issues with HDD performance.
     
    zicada, Jun 21, 2009
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  9. Phil72

    Felix[GER]

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    I got this results with Windows7 and the Acer Chipset Driver, but did a Bios Update from Acer Homepage.

    [​IMG]

    Used the Stardart option (64K Blocks) for this test, with bigger blocks i get better results. Did you notice that all three screenshots refer to a different drive? Look at the last letters in the Name.
     
    Felix[GER], Jun 21, 2009
    #9
  10. Phil72

    greenail

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    i'd love to see ssd performance numbers running in this thing.
     
    greenail, Jun 21, 2009
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  11. Phil72

    runtohell121

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    is it really capped? x.x
    [​IMG]
    i don't really know.. i'm running stock hdd.. so no clue..
     
    runtohell121, Jun 21, 2009
    #11
  12. Phil72

    Felix[GER]

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    You got a fast one ;)
    [​IMG]

    Seems that Acer is shipping different Models of the 160GB HDD. The Hitachi HTS543216L9SA00 looks like a bit slower, or could it be some configuration?

    Greetings,
    Felix
     
    Felix[GER], Jun 22, 2009
    #12
  13. Phil72

    runtohell121

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    the AAO 751 from costco which i have has a ST9160310AS (160gb)
     
    runtohell121, Jun 22, 2009
    #13
  14. Phil72

    zicada

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    I've got the ST as well.
     
    zicada, Jun 22, 2009
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