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Thread: PC starts by turning off USB HD




  1. #1
    Kosake is offline Junior Member
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    Default PC starts by turning off USB HD

    hi,

    my PC shows a strange behavior. When i shut down windows (8.1) and after then i turn OFF my external HDD (via USB), the PC re-starts.

    What can i do?

    Asrock Z97 Anniversary, latest Bios version.
    Last edited by Kosake; 05-31-2015 at 02:30 AM.

  2. #2
    Kosake is offline Junior Member
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    Default Re: PC starts by turning off USB HD

    No ideas??

  3. #3
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    Default Re: PC starts by turning off USB HD

    You mean you plug out the USB cable and PC starts, yes?
    Does it occur on all USB ports?
    When PC is running, don't you have any problem connecting / disconnecting that cable? (something like hang or restart)

  4. #4
    Kosake is offline Junior Member
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    Default Re: PC starts by turning off USB HD

    No, i turn off the USB HDD (it has a on/off switch) and then PC starts.

    Other USB ports I have'nt tried yet.

    When PC is running there are no problems.

    I have read about the ErP/EuP option, it can be the cause:

    But i can't find this setting in my Asrock Bios, altough my board has this function: "ErP/EuP ready (ErP/EuP ready power supply is required)"
    Attached Images Attached Images PC starts by turning off USB HD-tn_bios_setup_jgo_sc-jpg 

  5. #5
    Kosake is offline Junior Member
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    Default Re: PC starts by turning off USB HD

    Last night my PC started by itself...

    EDIT: The cause of the automatic start was the "Adobe Flash Player PPAPI Notifier", a Windows schedule task.

    To the other problem:

    Quote Originally Posted by bahram_alinezhad View Post
    Does it occur on all USB ports?
    Yes.
    Last edited by Kosake; 06-03-2015 at 07:36 AM.

  6. #6
    Kosake is offline Junior Member
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    Default Re: PC starts by turning off USB HD

    Why no one here knows anything?

    Where should I ask if not here??

  7. #7
    alexflcl is offline Junior Member
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    Default Re: PC starts by turning off USB HD

    If I were you I would try with a different PSU to check if it continues doing that. Power problems may bring this kind of things.

  8. #8
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    Default Re: PC starts by turning off USB HD

    Hold the power button a few seconds and force the computer turn off. This guarantees shutdown in S5 mode. Then see if still can your external drive turn-on the computer or not.

  9. #9
    Kosake is offline Junior Member
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    Default Re: PC starts by turning off USB HD

    Quote Originally Posted by bahram_alinezhad View Post
    Hold the power button a few seconds...
    While i am in Windows?

  10. #10
    Kosake is offline Junior Member
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    Default Re: PC starts by turning off USB HD

    Edit: when i am in Windows and hold the power button instead of shutting down via windows (right click start menu), the pc DOESN'T restart when switching off a usb drive! Very nice, thank you.

    But what is the different of these two shutdown methods and can you say why "Shutdown" in Windows obviously brings the pc not in S5 mode?

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