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USB problem

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  • 29-01-2013 7:53pm
    #1
    GarH
    Registered Users Posts: 301 ✭✭


    Here's a strange one for the experts. Though I guess it might be something simple.
    My pc has 2 usb ports on the front. I can plug a usb hdd into either and everything is okay. But if i try to plug in 2 usb hdds at the same time, one of the ports decides not to work.

    Any ideas will be much appreciated.

    Thanks


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    #2
    mp22
    Moderators, Business & Finance Moderators, Regional South Moderators Posts: 6,854 Mod ✭✭✭✭mp22


    Have the 2 usb devices got the same name? note the name/letter each one has.


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    #3
    coylemj
    Registered Users Posts: 25,455 ✭✭✭✭coylemj


    Are they portable drives (powered by the PC) or is each drive powered by it's own mains AC adapter? It's possible that the pair of USB ports can't power two drives i.e. the internal circuitry can't deliver enough watts to the pair of ports to power two portable drives.

    If it's a desktop/mini-tower you wouldn't expect there to be any problems with power - or is it a laptop?


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    #4
    GarH
    Registered Users Posts: 301 ✭✭GarH


    Thanks for the replys.

    Aye. They have separate drive letters and names.

    And they are usb powered. In a desktop pc.

    But why would the same thing happen if I swapped a hdd for a usb drive?
    Is it still a power issue?

    EDIT: maybe I should try a powered usb hdd to test this. Dammit. Komplett has enough of my money.


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    #5
    FSL
    Registered Users Posts: 1,456 ✭✭✭FSL


    The ports at the front usually just connect to a single port, akin to having a two port hub, so it's just insufficient power for two drives.


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