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Date:      Fri, 31 Mar 2000 14:49:48 -0500 (EST)
From:      Essenz Consulting <john@athena.lightningone.net>
To:        Mike Smith <msmith@FreeBSD.ORG>
Cc:        freebsd-hardware@FreeBSD.ORG
Subject:   Re: Motherboards for 2u Rack mounts 
Message-ID:  <Pine.BSF.4.10.10003311448250.59523-100000@athena.lightningone.net>
In-Reply-To: <200003311707.JAA02813@mass.cdrom.com>

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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
> 
> 
> 



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