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Article #13Re: Front Panel USB Headers - some devices dont work
From: kony
Date: Mon, 16 Jun 2008 11:49
Date: Mon, 16 Jun 2008 11:49
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On Mon, 16 Jun 2008 02:42:42 -0400, Paul <nospam@needed.com> wrote: >> It's no excuse for "Gazwad's" reply, but most front panel >> USB is not a powered on board hub. Most is just an >> extension cable from the motherboard pin headers. An >> exception would be when that does to a multi-in-one modular >> device like a card reader that has more than one integral >> USB socket or more than one other device integrated that >> uses USB besides the card reader slots. > >The ports come from the Southbridge, because the Southbridge >has a ton of them available, and no motherboard makers wastes >money adding chips which are not needed. The Southbridge handles >ports on the I/O area on the back of the computer, and sends signals >to the spare 2x5 headers on the motherboard surface (intended for >extension cables and PCI slot covers and for front panel USB ports). >In some cases, Southbridge USB ports are used to control onboard >Wifi devices or sound devices. There is generally no need for >a hub on the motherboard. The Southbridge does it all. I was under the impression what was being referred to, and what I'd replied to, was present of a hub on the front panel I/O card.
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