TechSpot

USB 2.0 Unknown Device & Slower speed

By banksters
May 22, 2008
  1. So a few months back, I decided to plug in one of those X-Plorer Guitars for the xbox 360 into my computer cause it said it was compatible with windows. It worked just fine until I unplugged it. From then on, whenever I plugged something into that same usb port, it would show up as "Unknown Device" on Windows (i'm using XP btw) and any device that I plugged in wouldn't work. Another problem that came along with this was that two of my USB 2.0 ports suddenly started functioning at 1.1 speeds.

    I read another thread on this forum about the same problem, and I've tried most of the methods (unplugging computer for 30 minutes, re-install Windows, restacking the USB drivers, updated BIOS, etc.) but they don't work. I even reformatted and it didn't help. It's really frustrating me and it'd be nice if I could get some help... thanks. :D

    edit: Here's all my IRQ thingies (sorry I'm not too good with tech lingo >_>)

    IRQ 0 High precision event timer OK
    IRQ 1 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard OK
    IRQ 3 Communications Port (COM2) OK
    IRQ 4 Communications Port (COM1) OK
    IRQ 5 NVIDIA nForce PCI System Management OK
    IRQ 6 Standard floppy disk controller OK
    IRQ 8 High precision event timer OK
    IRQ 9 Microsoft ACPI-Compliant System OK
    IRQ 13 Numeric data processor OK
    IRQ 14 Primary IDE Channel OK
    IRQ 16 NVIDIA GeForce 8600 GTS OK
    IRQ 18 Texas Instruments OHCI Compliant IEEE 1394 Host Controller OK
    IRQ 20 Standard Enhanced PCI to USB Host Controller OK
    IRQ 21 NVIDIA Network Bus Enumerator OK
    IRQ 22 Standard OpenHCD USB Host Controller OK
    IRQ 22 NVIDIA MCP61 Serial ATA Controller OK
    IRQ 23 Microsoft UAA Bus Driver for High Definition Audio OK
    IRQ 23 NVIDIA MCP61 Serial ATA Controller OK


    aaaaand it listed some conflicts:
    I/O Port 0x0000A000-0x0000AFFF PCI standard PCI-to-PCI bridge
    I/O Port 0x0000A000-0x0000AFFF NVIDIA GeForce 8600 GTS

    I/O Port 0x00000000-0x00000CF7 PCI bus
    I/O Port 0x00000000-0x00000CF7 Direct memory access controller

    I/O Port 0x000003C0-0x000003DF PCI standard PCI-to-PCI bridge
    I/O Port 0x000003C0-0x000003DF NVIDIA GeForce 8600 GTS

    IRQ 22 Standard OpenHCD USB Host Controller
    IRQ 22 NVIDIA MCP61 Serial ATA Controller

    IRQ 23 Microsoft UAA Bus Driver for High Definition Audio
    IRQ 23 NVIDIA MCP61 Serial ATA Controller

    Memory Address 0xE0000000-0xEFFFFFFF PCI standard PCI-to-PCI bridge
    Memory Address 0xE0000000-0xEFFFFFFF NVIDIA GeForce 8600 GTS

    Memory Address 0xA0000-0xBFFFF PCI bus
    Memory Address 0xA0000-0xBFFFF PCI standard PCI-to-PCI bridge
    Memory Address 0xA0000-0xBFFFF NVIDIA GeForce 8600 GTS

    I/O Port 0x000003B0-0x000003BB PCI standard PCI-to-PCI bridge
    I/O Port 0x000003B0-0x000003BB NVIDIA GeForce 8600 GTS

    Memory Address 0xF8000000-0xFBFFFFFF PCI standard PCI-to-PCI bridge
    Memory Address 0xF8000000-0xFBFFFFFF NVIDIA GeForce 8600 GTS
     
  2. Tmagic650

    Tmagic650 TS Ambassador Posts: 20,934   +167

    Buy a powered external USB 2 adapter and see if this solves your problem
     
  3. banksters

    banksters TS Rookie Topic Starter

    Just bought one today, and it seems to make the problem worse. Now none of my USB 2.0 ports are working at 2.0 speeds...
     
  4. kimsland

    kimsland Ex-TechSpotter Posts: 18,353

  5. banksters

    banksters TS Rookie Topic Starter

    Looks like I'm gonna have to do that then... I'm gonna be sad if that gets messed up too -_-
     
  6. kimsland

    kimsland Ex-TechSpotter Posts: 18,353

    No it's just your Motherboard USB ! (they're the first to go - usb)
     
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