Solved USB ports on Dell workstation stop working

Dell Precision 450 workstation
March 21, 2010 at 19:22:22
Specs: Windows XP Professional
My USB ports work when I start the computer, but then as I add additional USB device such as thumbrdrive or external drive, the USB ports stop functioning. I get the windows error message that there was an error with the install. Anyone have any idea's on this issue? Thanks

Ray J

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March 21, 2010 at 20:55:21
✔ Best Answer
USB devices may not work correctly when they're connected to certain USB ports e.g. ports in a hub or on the front of a desktop case. If you have a desktop computer, you may have an IRQ sharing problem you need to fix, or your power supply may be starting to fail.
See response 3 in this:

Also - if you are using a USB extension cable, some of them have inadequate wiring and will not work properly with some USB devices.

In addition, all external drives connected by USB require that the port (or ports) they connect to can actually supply 500ma of current.

USB external hard drive requirements.

See Response 9:

The flash drive (or external drive, or memory card reader) must be plugged into a port it will actually work in.

How to tell if the flash drive (or external drive, or memory card reader) is properly recognized as a hardware device, even if you can't access it's data.
Programs you can try to recover your data, if that's okay.

The most frequent reason people can no longer access the data on a USB flash drive, USB External drive, or a memory card on a computer

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