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Will USB 2.0 and 1.1 Coexist?



 
 
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  #1  
Old January 13th 05, 12:24 AM
Raymond J. Johnson Jr.
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Default Will USB 2.0 and 1.1 Coexist?

If a computer has onboard USB 1.1 and a 2.0 PCI card is added, will the
two work at the same time? I understand that 1.1 devices will only
work at 1.1 speed, but can a system handle the two simultaneously?
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  #2  
Old January 13th 05, 01:50 AM
peter
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Default Will USB 2.0 and 1.1 Coexist?

Yes they can.............different device connections
peter
"Raymond J. Johnson Jr." wrote in message
...
If a computer has onboard USB 1.1 and a 2.0 PCI card is added, will the two
work at the same time? I understand that 1.1 devices will only work at 1.1
speed, but can a system handle the two simultaneously?



  #3  
Old January 13th 05, 01:51 AM
Thomas Wendell
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Default Will USB 2.0 and 1.1 Coexist?

Yes, they will work simultaneously. USB1.1 at 1.1 speeds and USB2 at USB2
speeds... (i have such a setup, Asus A7V133-C and add-on USB2 card...


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"Raymond J. Johnson Jr." kirjoitti viestissä
...
If a computer has onboard USB 1.1 and a 2.0 PCI card is added, will the
two work at the same time? I understand that 1.1 devices will only
work at 1.1 speed, but can a system handle the two simultaneously?



  #4  
Old January 13th 05, 02:06 AM
yabbadoo
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Default Will USB 2.0 and 1.1 Coexist?

YES - just done it! (installed USB2 card) Now have 6 USB1 and 2 USB2 ports.

But, be aware of potential problems - following this procedure might save
you hours of grief.

First - connect an old PS2 mouse and keyboard. Ensure you have NO active USB
devices (incl cordless receiver).

Having installed USB2 card and drivers and booted, go to System/Device
Manager and UNINSTALL every instance of USB - there's quite a few. Close
down and re-boot with USB mouse/keyboard/receiver re-connected, if you have
them.

XP will then re-install USB's the way it wants them - should be trouble free
(though I had a little problem with Logitech radio controller - k/b worked,
but not mouse - resolved by re-installing Logitech Keyboard driver).

Do tell if this helps - sincerely, Len

"Raymond J. Johnson Jr." wrote in message
...
If a computer has onboard USB 1.1 and a 2.0 PCI card is added, will the
two work at the same time? I understand that 1.1 devices will only work at
1.1 speed, but can a system handle the two simultaneously?



  #5  
Old January 13th 05, 05:25 AM
Raymond J. Johnson Jr.
external usenet poster
 
Posts: n/a
Default Will USB 2.0 and 1.1 Coexist?

yabbadoo wrote:
YES - just done it! (installed USB2 card) Now have 6 USB1 and 2 USB2 ports.

But, be aware of potential problems - following this procedure might save
you hours of grief.

First - connect an old PS2 mouse and keyboard. Ensure you have NO active USB
devices (incl cordless receiver).

Having installed USB2 card and drivers and booted, go to System/Device
Manager and UNINSTALL every instance of USB - there's quite a few. Close
down and re-boot with USB mouse/keyboard/receiver re-connected, if you have
them.

XP will then re-install USB's the way it wants them - should be trouble free
(though I had a little problem with Logitech radio controller - k/b worked,
but not mouse - resolved by re-installing Logitech Keyboard driver).

Do tell if this helps - sincerely, Len

"Raymond J. Johnson Jr." wrote in message
...

If a computer has onboard USB 1.1 and a 2.0 PCI card is added, will the
two work at the same time? I understand that 1.1 devices will only work at
1.1 speed, but can a system handle the two simultaneously?





Thanks to all for the responses.
  #6  
Old January 13th 05, 05:54 PM
Alex Nichol
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Default Will USB 2.0 and 1.1 Coexist?

Raymond J. Johnson Jr. wrote:

If a computer has onboard USB 1.1 and a 2.0 PCI card is added, will the
two work at the same time? I understand that 1.1 devices will only
work at 1.1 speed, but can a system handle the two simultaneously?


Yes. USB 1.1 devices should of course be put on the 1.1 ports (though
they will work on 2.0) reserving 2.0 ports for the things that need it

--
Alex Nichol MS MVP (Windows Technologies)
Bournemouth, U.K. (remove the D8 bit)
  #7  
Old January 13th 05, 07:22 PM
Raymond J. Johnson Jr.
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Default Will USB 2.0 and 1.1 Coexist?


"Alex Nichol" wrote in message
...
| Raymond J. Johnson Jr. wrote:
|
| If a computer has onboard USB 1.1 and a 2.0 PCI card is added, will the
| two work at the same time? I understand that 1.1 devices will only
| work at 1.1 speed, but can a system handle the two simultaneously?
|
| Yes. USB 1.1 devices should of course be put on the 1.1 ports (though
| they will work on 2.0) reserving 2.0 ports for the things that need it
|
| --
| Alex Nichol MS MVP (Windows Technologies)
| Bournemouth, U.K. (remove the D8 bit)

As I suspected. Thanks, Alex.


 




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