Reply to thread

Message: [QUOTE="Anna, post: 8914478"] Pielut: It's not clear from your query (at least not clear to me) what precisely is the problem? Is it a question that the system does not recognize a USB device when connected? Is the problem that (apparently) the USB device(s) you connect (and what are they?) are operating at USB 1.0 - 1.1 speeds? Are any messages being generated by the system re this problem? If so, what are they? Anyway, be that as it may... We've put together some "troubleshooting tips" re problems affecting USB devices in an XP environment. Perhaps it will be of some help to you. 1. Access Disk Management and see if the USB device is listed. If so, and there's no drive letter assigned, see if you can assign a drive letter to the device. 2. If the USB device is listed in Disk Management with an assigned drive letter, right-click on its listing and select Explore from the submenu. Hopefully, Windows Explorer will open and the device will be listed. 3. Connect the USB device *directly* to a USB port on the computer, not via a USB hub. Try different USB ports should your computer have multiple ports. 4. Avoid using a USB extension cable. 5. Try connecting a USB device (that does not contain an auxiliary power supply) to a USB port both before and after the boot operation. 6. Where a USB (or Firewire) external HDD is involved, access Device Manager, highlight the Disk drives listing and click on the Action menu item and then the "Scan for hardware changes" sub-menu item. Do the same in Disk Management > Action > Rescan disks. 7. Try alternate powering on/off methods. If the USB device contains its own power supply, try booting up with its power on, then try powering on only *after* the system has booted to a Desktop. 8. Try a different USB cable. 9. In the USB controllers section of Device Manager, uninstall all the USB controllers listed and reboot. 10. If the device in question is a HDD which you installed in a USB enclosure, jumper the USB external HDD as Master (or Single if the HDD is a Western Digital disk). A number of users have reported that jumper configuration corrected their non-recognition problem. In my own experience it didn't seem to matter how a USB external HDD was jumpered. But it may be worth a try. 11. If the device in question is a USB external HDD, first check out the HDD with the hard drive manufacturer's diagnostic utility. If it checks out OK, and you can remove the HDD from its enclosure (without voiding any applicable warranty), do so and install the HDD as an internal HDD to determine if there are problems with the drive. 12. If the USB device is connected to a USB 2.0 PCI card, try changing the PCI slot to which it's currently connected to another one. 13. Access the website of the manufacturer of the USB device to determine if there's any firmware update or info re the problem you're experiencing or there's any possibility that the USB enclosure itself might be defective. 14. Determine from the manufacturer of your motherboard whether there's a BIOS upgrade affecting USB device recognition. P.S. A number of posters have reported they've found useful information re troubleshooting USB devices on this site... [URL]http://www.uwe-sieber.de/usbtrouble_e.html[/URL] Anna [/QUOTE]

Verification