USB 2.0 & P4B533-E


N

News Groupie

I'm in the middle of installing USB 2.0 after a fresh WinXP install. I
already installed the QFE fix for USB 2.0 and the latest version of Intel
INF. Is this how my USB device list should look after successful driver
install (below)? Should all of them say USB 2.0? Should there be 6 devices
listed since my board has 6 USB ports???

Intel(r) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CD
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C7
USB 2.0 Root Hub
USB Root Hub
USB Root Hub
USB Root Hub

TIA
 
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M

Mistoffolees

News said:
I'm in the middle of installing USB 2.0 after a fresh WinXP install. I
already installed the QFE fix for USB 2.0 and the latest version of Intel
INF. Is this how my USB device list should look after successful driver
install (below)? Should all of them say USB 2.0? Should there be 6 devices
listed since my board has 6 USB ports???

Intel(r) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CD
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C7
USB 2.0 Root Hub
USB Root Hub
USB Root Hub
USB Root Hub

TIA

Looks OK. Although there are 6 ports, each USB Root Hub
supports 2 USB ports.
 
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P

Paul

"News Groupie" said:
I'm in the middle of installing USB 2.0 after a fresh WinXP install. I
already installed the QFE fix for USB 2.0 and the latest version of Intel
INF. Is this how my USB device list should look after successful driver
install (below)? Should all of them say USB 2.0? Should there be 6 devices
listed since my board has 6 USB ports???

Intel(r) 82801DB/DBM USB 2.0 Enhanced Host Controller - 24CD
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C2
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C4
Intel(R) 82801DB/DBM USB Universal Host Controller - 24C7
USB 2.0 Root Hub
USB Root Hub
USB Root Hub
USB Root Hub

TIA

When ports are run in USB 1.1 mode, typically one controller
controls two physical ports. You have three entries above,
so there must be six ports on the motherboard controlled by
the Southbridge. (The two ports on one controller share the
12Mbit/sec bandwidth, so if you have two high bandwidth
USB 1.1 devices, don't plug them into the same USB pair.
I.e. Two USB 1.1 disk drives should go on different port
pairs.)

When ports are run in USB 2.0 mode, one controller controls
all the ports. I think this means that the 480Mbits/sec
transfer rate is shared over all six of your ports. In
this case, it doesn't matter where a USB 2.0 disk drive
is plugged in, as it always have to share with the other
ports.

Everything above looks OK to me. I'm told the "USB 2.0 Root Hub"
only shows up whenever a USB 2.0 device is plugged in, so
there must be something USB 2.0 plugged in right now.

HTH,
Paul
 

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