• USB Connection problem

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    #434267

    Please excuse me for not knowing all the information about the computer in question — it belongs to my brother-in-law who lives 3000 miles away. I will be going to visit him in about 10 days, and he has asked me to look into a problem he has. I would like your input and ideas.

    It is a Sony desktop computer, WinXP, several years old, that his kids mainly use now. They previously used it with their iPods, but they cannot anymore — because the computer no longer can use more than ONE USB port at a time. It will recognize and use any USB device — as long as only one is plugged in. If he plugs any other USB device in, it will not be recognized and will not work. He has tried every combination. He has had several ‘experts’ look that the computer, and they don’t have an answer.

    He tried to by an external, powered, USB hub to see if this was the answer. NOPE. Only one USB device will work. He tried an internal PCI USB 2.0 card. Nope again. He backed up and completely reinstalled WindowsXP. No go. The Device Manager shows NO problems Universal Serial Bus Controllers — they are all working properly.

    Any ideas??? Thanks.

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    • #1023415

      It sounds like a hardware issue with the USB controller, despite what the Device Manager says. Take a look at this article on USB.

    • #1023426

      I know you said he checked ALL combinations, but …

      Has he tried looking n the BIOS and verified that all USB ports are active and/or verified the “Legacy” is supported ?

      • #1023592

        We have yet to look into BIOS issues, but others have suggested resetting the BIOS by removing the battery for more than 30 seconds.

        • #1023593

          Removing the battery will reset the BIOS, but usually for more than 30 seconds. I leave the battery out for 2-3 hours.

          Having said this – CAUTION ! ! !

          Make sure you have written down EVERY BIOS Setting or understand EVERY BIOS setting before resetting the BIOS. If you do not have the correct clock, CPU, Memory etc settings, you will have trouble re-starting your machine.

          NOTE:If BIOS is recognizing the FDD, and you can access the drive in DOS (trick above) – this is NOT a BIOS problem.

          Question _ does the device manager show the internal FDD ? If so, is the device status “Working properly” ?

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