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  1. #21
    Senior Member Driftwood's Avatar
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    Default Re: I may have wounded my Motherboard

    I'll relate as I remember it, bearing in mind it was three weeks ago.
    The radio was powered up & the USB cable connected to it.
    When I connected the other end to the PC, it instantly started a reboot.
    I disconnected the cable before it completed.
    I then noticed there was no network/internet.
    At this point I didn't realize the system was damaged & attempted to get the network going again.
    I wasn't winning there, so decided to carry on without the it.

    I then connected the radio using the cable that came with the radio.
    These cables are just standard USB to USB mini B.

    The USB3 & DVI-D were still working until the second reboot.

    The radio was powered by it's own NZ AC adaptor

    There was no antenna connected to the radio.

  2. #22
    Computer "Specialist" Agent_24's Avatar
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    Default Re: I may have wounded my Motherboard

    It really does sound like some ESD (electrostatic discharge) or other high voltage discharge event occurred.

    Even with a horribly miswired USB cable/port, it should only either damage the USB controller or blow/trip a fuse (they used to have polyfuses on USB ports, not sure if they still do), or more likely, just cause a detection error.

    The only thing I can think of is a faulty power supply for the radio. Or perhaps a severely faulty USB transceiver circuit in the radio that was outputting the power supply voltage (12v, 24v whatever it is). Again though, I'd expect that to only blow the USB controller. It's very strange.

    Reminds me of "Bad USB" concept. https://hackaday.com/2015/10/10/the-...r-version-2-0/ The effects are similar to what you described. That's why I'd suspect a faulty power supply with bad isolation from the mains because I can't see a high voltage coming from anywhere else.
    Non-system disk or disk error. Replace and strike any key when ready.

  3. #23
    Senior Member 1101's Avatar
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    Default Re: I may have wounded my Motherboard

    It could be the USB cable the radio came with being incorrectly wired . Ive had that on a USB charging cable , reverse polarity so it blew the device when you first charged it via USB

    Also, might be a weird earth issue. Where the radio earth & the PC earth had a voltage difference . Ive seen that once on a printer & it blew the PC printer port .

    Or the actual USB port can sometime be physically broken , so the USB port pins short out
    Last edited by 1101; 15-07-2022 at 09:12 AM.

  4. #24
    Senior Member Driftwood's Avatar
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    Default Re: I may have wounded my Motherboard

    Your package has been received at our PB Tech Logistics Centre however it is still awaiting receipt and assessment by the RMA department.
    Branch: PB Head Office, Manukau

  5. #25
    VoidMaster
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    Default Re: I may have wounded my Motherboard

    Reported
    It's not the least charm of a theory that it is refutable. The hundred-times-refuted theory of "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it - Friedrich Nietzsche

  6. #26
    Senior Member Driftwood's Avatar
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    Default Re: I may have wounded my Motherboard

    Refund received, case closed.

  7. #27
    Computer "Specialist" Agent_24's Avatar
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    Default Re: I may have wounded my Motherboard

    Quote Originally Posted by Driftwood View Post
    Refund received, case closed.
    No mention of it blowing their computers up as well?
    Non-system disk or disk error. Replace and strike any key when ready.

  8. #28
    Senior Member Driftwood's Avatar
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    Default Re: I may have wounded my Motherboard

    No reference at all, just full refund approved.
    I hadn't actually asked for a refund.
    For the reason for return, I had ticked faulty item.

  9. #29
    Computer "Specialist" Agent_24's Avatar
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    Default Re: I may have wounded my Motherboard

    Ha, it probably blew theirs up as well so they just immediately gave a full refund and hoping to avoid you trying to claim damages from them or something.
    Non-system disk or disk error. Replace and strike any key when ready.

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