Date: Sun, 7 May 1995 21:51:02 -0400 (EDT) From: Thomas Bagli <tb@emi.net> To: rgrimes@gndrsh.aac.dev.com (Rodney W. Grimes) Cc: jmz@cabri.obs-besancon.fr, karl@bagpuss.demon.co.uk, freebsd-hardware@FreeBSD.org Subject: Re: Intel 'ZAPPA' motherboard -details? Message-ID: <199505080151.VAA00617@florence.emi.net> In-Reply-To: <199505072319.QAA15309@gndrsh.aac.dev.com> from "Rodney W. Grimes" at May 7, 95 04:19:27 pm
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In a previous encounter, Rodney W. Grimes writes: > > EDO stands for Extended Data Out, I don't have any technical books > that cover just what changed in the DRAM design at this time, though > my new set of Micron Technology memory books shipped on Thursday so > I will have the ``official'' story very soon. > > My current understanding is that EDO simms basically hold valid data > on the output after RAS has been brought inactive, this allows you > to start the RAS precharge time early, effectively eliminating the > difference between access and cycle times on DRAM. Not that I believe everything I read, but the word is from some test lab that the difference between EDO and conventional memory shows no significant change in systems or graphic performance. The tests were, of course, DOS/Windows tests. Let us know what you find out. Thomas Bagli
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