I have a Dell Precision 360 system running Win XP Pro SP2. As of last night my
USB ports have stopped working inexplicably. Device manager reports good health
for all of the following:
Universal Serial Bus Controllers
- Inter® 82801EB USB Universal Host Controller - 24D2
- Inter® 82801EB USB Universal Host Controller - 24D4
- Inter® 82801EB USB Universal Host Controller - 24D7
- Inter® 82801EB USB Universal Host Controller - 24DE
- Inter® 82801EB USB Universal Host Controller - 24DD
- USB Root Hub
- USB Root Hub
- USB Root Hub
- USB Root Hub
- USB Root Hub
I have a Pocket PC an iPod and external hard drive and a digital camera
connected to the computer and none of those connections works anymore. I notice
that my iPod is still charging though so the physical connection seems to be
working. However when I plug in any of the devices into the computer the computer
does not respond at all by recognizing them. I see no errors in the Events Log
either. I have tried uninstalling the host controllers and USB hubs in normal
and safe mode (while disconnecting all peripherals).
I have tried several options trying to ressurect the ports including:
- updating BIOS from A06 to A08
- Installing latest Intel Chipset software
- Uninstalling and Re-installing the USB controllers (from Hardware Devices
list)
The ports are still "hot" though in the sense that if I plug in my iPod it
charges.
What could have gone wrong all of a sudden?
thanks
Tony