USB 2 ports suddenly are slow ... ?

Discussion in 'Mac Pro' started by Bansaw, Sep 21, 2008.

  1. Bansaw macrumors newbie

    Joined:
    Feb 1, 2008
    #1
    I have two memory sticks (loads of space on both of them.)

    For about seven days now I noticed that they are incredibly slow (about usb1 speed) and I don't know why?

    I have 10.5.4 OS , 2 x 2.8 Ghz Quad, 8 GB Ram with about 5 usb2 ports.
    I tired ports at both the back and front - same result.

    Any ideas ?
     
  2. debonis macrumors newbie

    Joined:
    Oct 8, 2008
    #2
    Suddenly slow USB

    Similar problem here with G5 Quad, 10.5.5. I have an external WD 500 GB attached on USB 2.0. Sometimes it works really fast but then it seems to switch to USB 1.0 speed. Sometimes restarting works or re-mounting the external works but not allways.

    Couldn't find any hint so far.

    Any ideas?
     
  3. inigel macrumors regular

    inigel

    Joined:
    Mar 14, 2008
    Location:
    Australia
    #3
    I've noticed that USB 2.0 on Macs are crummy speeds compared to Windows. That is one thing I envy with Windows users.
     

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