USB Details as shown by Device Driver?

Discussion in 'CPU, Motherboards and Memory' started by rahulkhajuria, Feb 20, 2010.

  1. rahulkhajuria

    rahulkhajuria Geek Trainee

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    I have six usb ports in all on my system. 2 in the front and 4 at the back. Now if I go into device manager (in windows xp professional sp2) and check under "Universal Serial Bus Controller" I get the following:-

    Intel(R) 82801 EB Universal Host Controller - 24D2

    Intel(R) 82801 EB Universal Host Controller - 24D4

    Intel(R) 82801 EB Universal Host Controller - 24D7

    Intel(R) 82801 EB Universal Host Controller - 24DE

    Intel(R) 82801 EB Universal Host Controller - 24DD

    USB root hub
    USB root hub
    USB root hub
    USB root hub
    USB root hub

    So , you see , though I have physically 6 USB ports, I just see 5 USB controllers and 5 USB root hubs. Why so? Shouldn't there be 6 of those?

    Also when I try to plug-in a device in one of the USB ports on the front side , it says "USB Device Not Recognized" . Why does this message come . There are no problems when I plug-in devices in the other 5 ports .

    Thanks for your help.

    Regards
     

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