USB no longer works

[huizilopochtli]

Company bought a Dell desktop. P4. Win XP Pro SP2. Sometime between when the company received the dell and now, the USB ports stopped working. Shows 4 "Intel(R) 82801EB USB Universal Host Controller - 24D(x)" X is just a random hex digit. But it only shows 3 "USB Root Hub"s. I've tried uninstalling, reinstalling, downloading a different USB driver, etc. Neither front nor back ports work. When I plug a device into them, nothing happens, no installing hardware, no nothing. Any suggestions? The only major upgrade that has occured has been SP2. I receive no error messages at all. If you need specs, I can get, it's just not at this location, so reply back and tell me.

 

[RicoDirenzo]

Interesting! I had a similar problem with an external USB DVDRW drive after SP2 got installed. No drive Icon anymore. I tried installing the USB drive in a firewire card....it still doesn't exist. Now I'll be doing a specific driver update and if that doesn't work....XP fresh reinstall. I want answers too!

 

[huizilopochtli]

The thing is, NO USB device will work. I tried to install a scanner. It doesn't detect it. I tried to use a USB Flash drive (which works everywhere else). It doesn't detect it.

 

[daappleby]

is usb enabled in the bios?

 

[huizilopochtli]

Yes

 

[daappleby]

hmmm, check that legacy usb support is disabled and try again. You may have to open the case and check that the hub is connected to the mobo.

 

[huizilopochtli]

I'll try the legacy thing, but both back and front USB ports do not work. Back USB ports are integrated into mobo.

 

[daappleby]

RMA? Seems that they are fubarred time to get Dell to fix it for you.

 

[huizilopochtli]

I'd rather see if I can troubleshoot it first. Legacy USB is disabled. USB still does not work.