Look at the motherboard guide. This should tell you.

If you have installed an add on card then I would look at this
documentation. Once this has been figured out I would diagram it and stick
it on the inside cover of the case so that you do not have to research this
topic again. And, just a tip - for those motherboards that come with a
sticker I always make sure to place the sticker on the inside of the case so
that everything is readily available to me when I need it.

--
Cary W. Shultz
Roanoke, VA 24012

"Hamid Zangeneh" <copyright@earthlink.net> wrote in message
news:ekHdLNtAGHA.3936@TK2MSFTNGP12.phx.gbl...
> Do any guys know which is usb1 and usb2 on any computers? and how do i
> find which one is which?
> thanks
>
>