From owner-freebsd-hardware Fri Mar 31 11:43:57 2000 Delivered-To: freebsd-hardware@freebsd.org Received: from athena.lightningone.net (athena.lightningone.net [12.34.104.3]) by hub.freebsd.org (Postfix) with ESMTP id ABC5137BA00; Fri, 31 Mar 2000 11:43:51 -0800 (PST) (envelope-from john@athena.lightningone.net) Received: from localhost (john@localhost) by athena.lightningone.net (8.9.3/8.9.3) with ESMTP id OAA59545; Fri, 31 Mar 2000 14:49:48 -0500 (EST) (envelope-from john@athena.lightningone.net) Date: Fri, 31 Mar 2000 14:49:48 -0500 (EST) From: Essenz Consulting To: Mike Smith Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: Motherboards for 2u Rack mounts In-Reply-To: <200003311707.JAA02813@mass.cdrom.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Mixing REGISTERED ECC SDRAM and 133 MHz SDRAM is a problem with i840. PC100 unbuffered ECC SDRAM has no problems, at least not on the Supermicro boards. -john On Fri, 31 Mar 2000, Mike Smith wrote: > > If you've been following the news, you'll know that mixing ECC SDRAM with > the i840 chipset is a recipe for disaster. > > > You dont have to use RDRAM in the PIIIDM3, you can use > > unbuffered ecc sdram. Kentron Technologies makes superior > > quality 512 Mb and 1 Gb SDRAM modules, which I have used with the PIIIDM3, > > And with that setup, the thing flew! > > > > Yeah, RDRAM is expensive, but it is the new technology, the specs on DDR > > and RDRAM are insane... > > > > On Thu, 30 Mar 2000, Mike Smith wrote: > > > > > > As for a good motherboard, as soon as all the bugs are ironed out with the > > > > Supermicro PIIIDM3, thats a powerfull board. The 840 chipset blows away > > > > 440BX/GX based boards. Not to mention 4 Gb of memory support! > > > > > > Not so sure about that; RDRAM is too expensive, the Rambus:SDRAM bridge > > > is slow and doesn't do ECC - nice workstation board, but a terrible > > > choice for a serber. > > > > > > -- > > > \\ Give a man a fish, and you feed him for a day. \\ Mike Smith > > > \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org > > > \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com > > > > > > > > > > > > > > > -- > \\ Give a man a fish, and you feed him for a day. \\ Mike Smith > \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org > \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com > > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message