Connecting a USB 2.0 device to a USB 1.1 port

[moonlightpegasus]

I have connected a USB 2.0 device to a USB 1.1 port. It
is an external CD-RW/DVD-ROM drive by iomega, connecting
to a Toshiba laptop. The device initially worked, then I
received a message saying that the device was not
recognized. Now I am receiving the message "You must add
a HI-SPEED USB host controller to this computer." What
does this mean, and how do I do it. Thankyou to anyone
who can help!

[Gene K]

moonlightpegasus wrote:
> I have connected a USB 2.0 device to a USB 1.1 port. It
> is an external CD-RW/DVD-ROM drive by iomega, connecting
> to a Toshiba laptop. The device initially worked, then I
> received a message saying that the device was not
> recognized. Now I am receiving the message "You must add
> a HI-SPEED USB host controller to this computer." What
> does this mean, and how do I do it. Thankyou to anyone
> who can help!
What the thing is telling you, I think, is that only USB 1.1 is
currently enabled on your system. To change that, you would have to
purchase and install a USB 2.0 enabling PCI card. They are made by
Adaptec, Scandisk, Belkin, etc,. In my area, about any electronics
purveyor such as Best Buy, Circuit City, even Wal-mart sells them for
about $20-25. To find out what you presently have, go to the "Control
Panel" and double click the "System" icon. When that opens, click the
"Hardware" Tab and then the "Device Manager". Scroll down toward the
bottom to "Universal Serial Bus controllers", then click the "+" sign to
expand to the individual entries. If you currently have USB 2.0, you
will see an entry with the word "enhanced" usually; something like "USB
Enhanced Host Controller." If your computer was manufactured after Feb
-Apr 2002, you probably have USB 2.0. If before, you probably only have
USB 1.1. USB controllers and devices are typically backwards compatible
but your Iomega External drive is not going to reach device capability
without USB 2.0.
Gene K

[Cerridwen]

moonlightpegasus wrote:
> I have connected a USB 2.0 device to a USB 1.1 port. It
> is an external CD-RW/DVD-ROM drive by iomega, connecting
> to a Toshiba laptop. The device initially worked, then I
> received a message saying that the device was not
> recognized. Now I am receiving the message "You must add
> a HI-SPEED USB host controller to this computer." What
> does this mean, and how do I do it. Thankyou to anyone
> who can help!

Answered in the general group. Please do not multipost.

[Gerry]

Hello Gene, are you sure that Iomaga's 48x24x48 CD-RW designed for USB 2.0
will not work on USB 1.1? I connected mine to an old Presario 1900 with USB
1.1 several month ago and the literature states, that the CD-RW will work at
a slower transfer rate, but otherwise it is compatible.
Thanks for letting me add my 2-cents.
Gerry
"Gene K" > wrote in message
...
> moonlightpegasus wrote:
> > I have connected a USB 2.0 device to a USB 1.1 port. It
> > is an external CD-RW/DVD-ROM drive by iomega, connecting
> > to a Toshiba laptop. The device initially worked, then I
> > received a message saying that the device was not
> > recognized. Now I am receiving the message "You must add
> > a HI-SPEED USB host controller to this computer." What
> > does this mean, and how do I do it. Thankyou to anyone
> > who can help!
> What the thing is telling you, I think, is that only USB 1.1 is
> currently enabled on your system. To change that, you would have to
> purchase and install a USB 2.0 enabling PCI card. They are made by
> Adaptec, Scandisk, Belkin, etc,. In my area, about any electronics
> purveyor such as Best Buy, Circuit City, even Wal-mart sells them for
> about $20-25. To find out what you presently have, go to the "Control
> Panel" and double click the "System" icon. When that opens, click the
> "Hardware" Tab and then the "Device Manager". Scroll down toward the
> bottom to "Universal Serial Bus controllers", then click the "+" sign to
> expand to the individual entries. If you currently have USB 2.0, you
> will see an entry with the word "enhanced" usually; something like "USB
> Enhanced Host Controller." If your computer was manufactured after Feb
> -Apr 2002, you probably have USB 2.0. If before, you probably only have
> USB 1.1. USB controllers and devices are typically backwards compatible
> but your Iomega External drive is not going to reach device capability
> without USB 2.0.
> Gene K

[Gene K]

Gerry wrote:
> Hello Gene, are you sure that Iomaga's 48x24x48 CD-RW designed for USB 2.0
> will not work on USB 1.1? I connected mine to an old Presario 1900 with USB
> 1.1 several month ago and the literature states, that the CD-RW will work at
> a slower transfer rate, but otherwise it is compatible.
> Thanks for letting me add my 2-cents.
> Gerry
> "Gene K" > wrote in message
> ...
>
>>moonlightpegasus wrote:
>>
>>>I have connected a USB 2.0 device to a USB 1.1 port. It
>>>is an external CD-RW/DVD-ROM drive by iomega, connecting
>>>to a Toshiba laptop. The device initially worked, then I
>>>received a message saying that the device was not
>>>recognized. Now I am receiving the message "You must add
>>>a HI-SPEED USB host controller to this computer." What
>>>does this mean, and how do I do it. Thankyou to anyone
>>>who can help!
>>
>>What the thing is telling you, I think, is that only USB 1.1 is
>>currently enabled on your system. To change that, you would have to
>>purchase and install a USB 2.0 enabling PCI card. They are made by
>>Adaptec, Scandisk, Belkin, etc,. In my area, about any electronics
>>purveyor such as Best Buy, Circuit City, even Wal-mart sells them for
>>about $20-25. To find out what you presently have, go to the "Control
>>Panel" and double click the "System" icon. When that opens, click the
>>"Hardware" Tab and then the "Device Manager". Scroll down toward the
>>bottom to "Universal Serial Bus controllers", then click the "+" sign to
>>expand to the individual entries. If you currently have USB 2.0, you
>>will see an entry with the word "enhanced" usually; something like "USB
>>Enhanced Host Controller." If your computer was manufactured after Feb
>>-Apr 2002, you probably have USB 2.0. If before, you probably only have
>>USB 1.1. USB controllers and devices are typically backwards compatible
>>but your Iomega External drive is not going to reach device capability
>>without USB 2.0.
>> Gene K
>
>
>
Every USB 2.0 device I have seen is backwards compatible to USB 1 and
1.1. The device probably would function but at a slower transfer back
amd forth.
Gene K