Hi Hugh,
On Monday 01 May 2006 16:15, Hugh Gundersen Scribbled:
> Hi Folks
>
> USB wiring is a nightmare sometimes. I have an EPoX mobo with a
> spare USB2 double header for additional USB ports. Great I hear!
>
> Now the USB back plate I have does not correspond to the handbook
> pinout.
>
> Handbook shows
>
> 1
> +5v <> <> +5v
> + data<> <> + data
> - data <> <> - data
> - v <> <> - v
> X <> over voltage
This is the industry standard wiring for the mainboard connector. Some
external ports on some boards are wired with one the wrong way round.
The backplate id probably for one of those boards !!
> The problem (simple to fix) is that the plug on the end of the
> sockets is as above on the left but reversed on the right and there
> is only one "over voltage" connection on the board but 2 on the plug.
>
> Q - has anyone else come up against this?
>
> Q - could the MOBO handbook be wrong??? (doubt it)
>
> Q - would you swap the offending wires around so the connector plug
> matches the MOBO pinout diagram in the book.
>
>
>
> Sir Hugh of Bognor
Yes just swap the wires about ! The over voltage wires can be joined,
or if you want, just ignore them and tape them up. The idea is if you
plug something in which provides its own power then the circuit can
compensate.
--
Best Regards:
Derrick.
Pontefract Linux Users Group.
plug at play-net.co.uk
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