🚀 go-pugleaf

<BigAl.NZ@gmail.com> wrote in message 
news:6463ede3-4e44-42b0-bfd5-7dc247bf3567@i18g2000prn.googlegroups.com...
> Hi All,
>
> I have come across this once or twice and its never really bothered
> me, but I am curious as to why:
>
> Occasionally I fond certain devices wont work on front panel usb
> headers, yet when plugged into the rear USB connectors that are "hard
> wired" to the motherboard, they are fine.
>
> At the moment, I have two external HDDs (with there own power supply)
> that wont work on the front but do work on the rear, however various
> other devices such as mouse and USB thumb drives do work on the front.
>
> Why????
>
> Cheers
>
> -Al
> PS: seen it on both XP and Vista.

I'll keep it brief, it is a type of "remembering" so that once a device
is connected, that device hogs that connection. The front panel USB
is a type of hub, so if you are going to connect differing devices at
differing times, then disconnect using the safely remove hardware
wizard that appears in system tray when a device is connected to
front panel or a hub. It doesn't remove drivers or anything else,
it just frees up the socket for next device to be connected.