Date: Wed, 24 Jan 2001 15:44:51 -0600 (CST) From: Chris Dillon <cdillon@wolves.k12.mo.us> To: Matthew Jacob <mjacob@feral.com> Cc: "Koster, K.J." <K.J.Koster@kpn.com>, "'Olivier Nicole'" <on@cs.ait.ac.th>, hardware@FreeBSD.ORG Subject: RE: Panic at setup time Message-ID: <Pine.BSF.4.21.0101241525560.65986-100000@mail.wolves.k12.mo.us> In-Reply-To: <Pine.BSF.4.21.0101241049480.7120-100000@beppo.feral.com>
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On Wed, 24 Jan 2001, Matthew Jacob wrote: > "shared bus" is the hint here... Right, but it is only shared if you have more than one device on it. :-) Most home/office systems only have one IDE HD and one IDE CDROM, and if the system builder was smart, they put the HD on the primary channel and the CDROM on the secondary channel, so you wouldn't be sharing the busses. This was the type of system that I assume was being talked about. Even if the CDROM were on the primary, an ATA66/100 host interface wouldn't be any help in that situation, since the fastest interface I've seen on any IDE CDROM drive to date is ATA33. IIRC, that would cause the whole channel to revert to ATA33 mode regardless if another device supported a faster mode, right? If you had two modern HDs on the same channel that each supported ATA66 or ATA100, then having an ATA66 or ATA100 host interface would be an improvement over ATA33 if you planned on transferring a lot of data to/from both drives simultaneously. Otherwise, it wouldn't make any noticeable difference, IMHO. Basically what I'm trying to say is, just because a particular motherboard only has an ATA33 interface is not necessarily a reason to NOT buy it. That is why I made the comment in the first place. :-) -- Chris Dillon - cdillon@wolves.k12.mo.us - cdillon@inter-linc.net FreeBSD: The fastest and most stable server OS on the planet. For IA32 and Alpha architectures. IA64, PPC, and ARM under development. http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message
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