From owner-freebsd-stable Sat Aug 14 2:31:38 1999 Delivered-To: freebsd-stable@freebsd.org Received: from uni4nn.gn.iaf.nl (osmium.gn.iaf.nl [193.67.144.12]) by hub.freebsd.org (Postfix) with ESMTP id A733A14E2A for ; Sat, 14 Aug 1999 02:31:32 -0700 (PDT) (envelope-from wilko@yedi.iaf.nl) Received: from yedi.iaf.nl (uucp@localhost) by uni4nn.gn.iaf.nl (8.9.2/8.9.2) with UUCP id LAA23169; Sat, 14 Aug 1999 11:25:53 +0200 (MET DST) Received: (from wilko@localhost) by yedi.iaf.nl (8.9.3/8.9.3) id LAA53789; Sat, 14 Aug 1999 11:07:00 +0200 (CEST) (envelope-from wilko) From: Wilko Bulte Message-Id: <199908140907.LAA53789@yedi.iaf.nl> Subject: Re: On freezes in 3.2-Stable (fwd) In-Reply-To: <199908140046.RAA02542@gndrsh.aac.dev.com> from "Rodney W. Grimes" at "Aug 13, 1999 5:46: 1 pm" To: rgrimes@gndrsh.aac.dev.com (Rodney W. Grimes) Date: Sat, 14 Aug 1999 11:07:00 +0200 (CEST) Cc: mike@smith.net.au, freebsd-stable@FreeBSD.ORG X-Organisation: Private FreeBSD site - Arnhem, The Netherlands X-pgp-info: PGP public key at 'finger wilko@freefall.freebsd.org' X-Mailer: ELM [version 2.4ME+ PL43 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG As Rodney W. Grimes wrote ... > > Er. The Intel AD450NX has 32 DIMM sockets. Unless someone starts > > making 2-chip DIMMs, I don't see how you would run 8GB in this box (and > > I have seen it being done under other operating systems). > > The Intel AD450NX in in the class ``supporting 8 sockets or more''. > The Intel AD450NX is in the class ``high dollar server machines''. > > > > > You might want to qualify the issue a little further; specifically with > > regard to "typical memory controllers", logic families and fanout. > > I think I qualified it plenty enough... > > As far as logic families and fanout, well they really don't matter much > with regards to this issue, memory drivers are special, not made with the > same configuration that the logic family is, and thus it's fanout is > quite different. The constant has been 72 for a very long time, since I > started duing mos memory system designs with 54xx/74xx TTL in the 80's > until today with the latest in CMOS and BiCMOS. Yea.. I could design a > supper honking driver that can drive 288 chips in the memory controller, > but then all the RAM chips would have to have larger data drivers to > handle that side of the bus. You could use buffered DIMMs I guess. Not really PC standard stuff though. -- | / o / / _ Arnhem, The Netherlands - Powered by FreeBSD - |/|/ / / /( (_) Bulte WWW : http://www.tcja.nl http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message