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    nc8430 USB speed problem

    Discussion in 'HP' started by villageman, Mar 25, 2007.

  1. villageman

    villageman Notebook Evangelist

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    Trying to get USB2 speeds from my external USB devices (mainly external HD's).
    I can only get speeds up-to 15 MB/s whichever port I use and without having any other devices connected.
    Tried with different USB cables-no change.
    Tested with XP and Vista (after a clean install)- no change

    Is this something to do with HP? Tried on different make laptops (DELL, NEC) and got 25 MB/s which is more like USB2.

    The firewire works much better and up to specs (35 mb/s).

    Any ideas?
     
    villageman, Mar 25, 2007
    #1
  2. Greg

    Greg Notebook Nobel Laureate

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    I've toped out with 25MB/s on an external SATA drive as the only device plugged in. That was the speed I got testing it on two separate computers.

    I've noticed the speed rapidly decreases to 12-15MB/s when a lot is plugged in, but I still cannot find the cause. I think it might be a chipset-bandwidth issue, but I'm not sure as most of my devices are low bandwidth yet my drives are so much slower. When I'm not in school over the summer, I'm going to start bugging HP about it.

    I'm starting to wonder if a few more users have this problem. It certainly is odd though.
     
    Greg, Mar 25, 2007
    #2
  3. nikotins

    nikotins Notebook Enthusiast

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    yeah same here USB slow as Estonian
     
    nikotins, Mar 25, 2007
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  4. villageman

    villageman Notebook Evangelist

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    Do you think it might be driver related or just a crappy hardware implementation of USB from HP?
     
    villageman, Mar 27, 2007
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  5. nikotins

    nikotins Notebook Enthusiast

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    i have read that chipset in some HP motherboards are some ancient ****...
     
    nikotins, Mar 27, 2007
    #5