Thread: " HI-SPEED USB device is plugged into a non-HI-SPEED USB hub" Error - HELP!!!

Originally Posted by EBFoxbat

It's not the device it's the controller. Sometimes 2 ports on a computer share the same controller. Sometimes 4 do. If a usb 1.1 device is plugged into any of the ports on a controller, the controller defaults to 1.1 and everything runs at that (crippling) speed.

This can't possibly be true...can you give me some background on this. Thanks.

Originally Posted by AlienEclipse

Have you checked in Device Manager. Usually you have to manually force XP to find/install the USB2 driver after instaling SP1 or SP2.

Interesting suggestion. I will post a screenshot of my device manager layout for ya'll later tonight. I may do an 'update driver' on some of the controllers.

-HD

Originally Posted by EBFoxbat

It's not the device it's the controller. Sometimes 2 ports on a computer share the same controller. Sometimes 4 do. If a usb 1.1 device is plugged into any of the ports on a controller, the controller defaults to 1.1 and everything runs at that (crippling) speed.

I thought this wasn't true until I tested it this weekend. I have an ATX mobo with a VIA VT8235(8325?) south bridge chipset. Your statement turned out to be completely true. When I ran a single usb 2.0 device on one port and left the other port empty (i.e. 2 ports per controller - 6 ports total on my mobo), I didn't get the popup. When I plugged in a USB 1.0 device, XP immediately brought up the dreaded icon.

I ended up finding an NEC chipset USB 2.0 PCI card and put that in the machine, it's working very well for now. I'll test more later on. Thanks for the suggestion.

-HD

Hi,

I stumbled accross this thread while googling a similar problem. I have tried the suggestions here and still no joy. I have no other USB devices plugged in, I am running Windows XP SP2 so should have the drivers, I have checked my bios setup and there is no mention of speed choices there but everything about USB is enabled. So I am very confused.

The most confusing part is the end of the message that says click here to see a list of ports which are high speed. The problem being it then shows my only 6 USB ports that i have so it must have been plugged into one of those yet it still reports that this isnt a high speed port. In device manager there are 3 USB Host controllers only one of which says 2.0 in the name so could the other 2 be getting in the way of the high speed usb 1?

If anyone has any ideas that would be great.