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    Slow USB 2.0 speed on Aspire 5024wlmi

    Discussion in 'Acer' started by franjoseljak, Jan 22, 2007.

  1. franjoseljak

    franjoseljak Newbie

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    Hi,

    I have a Hitachi DeskStar 160GB disk (PATA, 2MB) in a Revoltec external case (USB 2.0 only). I've ran a speed test with HD Tach and the results suprised me:

    [​IMG]

    The avarege write speed on the PC is ~30MB/s. How can I fix this problem? Has anyone else had similar speed over USB 2.0 external casings on their notebooks?

    Acer Aspire 5024wlmi, AMD Turion 1.8GHz, 512MB, X700 128MB, HDD Toshiba 4200rpm 8MB.
     
    franjoseljak, Jan 22, 2007
    #1
  2. Zoomastigophora

    Zoomastigophora Notebook Evangelist

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    That seems about right. Most hard drives don't write much faster than that. Just because USB2.0 can transfer at like 800Mb/s (don't quote me on that), doesn't mean the hard drive can write at that speed. The hard drive is largely limited because it physically has to change magnetic states on a spinning metal disk.
     
    Zoomastigophora, Jan 22, 2007
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  3. franjoseljak

    franjoseljak Newbie

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    Now that I think about it, the usb2.0 can't reach max. speed (30MB/s on a PC) becuse the notebook hdd is limiting it (23MB/s). Guess I'm in the market for a new hdd (7200rpm) :rolleyes: .Evan when I'm downloading at max. speed (12MB/s :cool: ) my acer freezes!
     
    franjoseljak, Jan 23, 2007
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