Date: Tue, 5 Jan 1999 20:33:43 +0000 (GMT) From: Doug Rabson <dfr@nlsystems.com> To: Terry Lambert <tlambert@primenet.com> Cc: sthaug@nethelp.no, jamie@itribe.net, freebsd-hackers@FreeBSD.ORG Subject: Re: PnP PCI modem Message-ID: <Pine.BSF.4.01.9901052032510.391-100000@herring.nlsystems.com> In-Reply-To: <199901051954.MAA18014@usr08.primenet.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Tue, 5 Jan 1999, Terry Lambert wrote: > > > 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. Not sure about Apple but the Dec alpha box which I have (with 6 slots) uses a pci-pci bridge. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.01.9901052032510.391-100000>