Re: P4B533 BIOS setup question

On Mon, 08 Aug 2005 13:01:21 -0400, nospam@xxxxxxxxxx (Paul) inspired by Deep
Thought wrote:

Many thanks Paul for your very useful reply! All is crystal clear now! I just
wish these mobo manuals would give useful information like yours - it would make
life so much easier!

Cheers!
Nigel
>
>Turn them both on. The controllers they refer to, are the blocks
>of logic inside the Southbridge. A USB 1.1 controller is shared
>over two ports, so three of them are needed for a total of six
>USB ports. A USB 2.0 controller is shared over all ports, so
>the same controller is time shared over the six ports.
>
>When you plug a USB device into a port, there is a dynamic process
>that decides whether the port is bound to a USB 1.1 controller
>logic block, or the USB 2.0 controller block. The USB driver
>software should do this automatically, so I cannot think of a
>good reason to disable any logic blocks in the Southbridge.
>
>To learn more about the chipset on your motherboard, you can go
>to developer.intel.com and download a data*** for the
>Northbridge and the Southbridge. For example, the Southbridge
>is here, and is a 7MB download (a little too technical for
>casual reading, so if you are on a dialup modem, don't
>bother):
>
>http://www.intel.com/design/chipsets/datashts/290744.htm
>
>The feature summary in the data*** says this for ICH4:
>
> "USB
> ? Includes three UHCI host controllers that support
> six external ports
> ? Includes one EHCI high-speed USB 2.0
> Host Controller that supports all six ports
> ? Supports a USB 2.0 high-speed debug port
> ? Supports wake-up from sleeping states S1­S5
> ? Supports legacy keyboard/mouse software"
>
>HTH,
> Paul


Aagh! Every time I learn something new... it pushes something old out of my brain!
.