Date: Tue, 5 Jan 1999 19:54:56 +0000 (GMT) From: Terry Lambert <tlambert@primenet.com> To: sthaug@nethelp.no Cc: jamie@itribe.net, freebsd-hackers@FreeBSD.ORG Subject: Re: PnP PCI modem Message-ID: <199901051954.MAA18014@usr08.primenet.com> In-Reply-To: <14757.915110288@verdi.nethelp.no> from "sthaug@nethelp.no" at Dec 31, 98 02:18:08 pm
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> > So, does this mean motherboards with a decent number of PCI slots will > > start appearing? > > I wouldn't count on it - I think it's more likely that you'll see more > USB equipment. > > AFAIK it's rather difficult electrically to have more than five slots in > one PCI bus. Thus if you need more, you'll need a system with more than > one system bus to PCI bridge. Thus higher cost, lower volume. This is a current issue, and is related to the chipset. Apple has a good PCI chipset, as does DEC; I believe both support 6 slots without a bridge because they have seperate lines for 6 slots. The Intel chips tend to have only 4 lines; some motherboard manufacturers double up one of the lines to get 5 slots. I suspect you could double up some of the lines on the DEC chip; don't know about the Apple. Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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