Re: USB V2.0 v/s V1.1

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From: Motiger (Motiger_at_discussions.microsoft.com)
Date: 06/27/04 

Date: Sun, 27 Jun 2004 09:42:01 -0700

Just wanted to say this was exactly what I was looking for. Outstanding!!!!!

Motiger
PS I do have the pen driver and I do have an "enhanced" card

"R. McCarty" wrote:

> First, you have check in Device Manager, Universal Serial Port category
> for the existence of a "Enhanced" controller. That enhanced descriptor
> indicates USB 2.0
>
> The only way to test a USB port is with a small loop-back device. It
> looks similar to a Pen Drive. USB has some confusing terminology.
> the original USB 1.1 is now referred to as "Full-Speed" and it's newer
> 2.0 offspring is called "Hi-Speed". (12.0 Meg vs. 480 Meg)
>
> You can test ports for USB 2.0 is you have a 2.0 device and plug it
> into a USB 1.1 port windows will display "A Hi-Speed device has been
> plugged into a Low speed port" ( The wording may not match exactly).
>
> Adaptec makes a software tool that maps USB ports and devices &
> shows USB speed ratings. However, it will only work on a add-in USB
> card from Adaptec.
>
> You can see the port layout & devices by changing Device Manager's
> default view form "Devices by Type" to "Devices by Connection".
> Then expand the ACPI, expand PCI Bus. Then click on each USB
> controller and you can see which devices are connected to which port.
>
>
>
> "Motiger" <Motiger@discussions.microsoft.com> wrote in message
> news:FDBC137E-B503-48F1-981F-A02F0C3FBFD7@microsoft.com...
> >I have installed USB V2.0 card, however, I can't tell if it was properly
> >done because I can't discern any noticable change in speed. Is there some
> >software available that will enable me to test this. Thanks very much.
> >
> > CBJ
>
>
>

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