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From: dinapoli@rodan.acs.syr.edu (Ron DiNapoli)
Newsgroups: comp.sys.mac.hardware
Subject: Re: The LC vs. IIsi (LONG)
Message-ID: <1991Jun11.114430.6225@rodan.acs.syr.edu>
Date: 11 Jun 91 11:44:30 GMT
References: <1991Jun5.175401.14345@sequent.com> <1991Jun7.192453.11305@dartvax.dartmouth.edu> <1991Jun7.214930.9822@midway.uchicago.edu>
Organization: Syracuse University, Syracuse, NY
Lines: 21

In article <1991Jun7.214930.9822@midway.uchicago.edu> jcav@quads.uchicago.edu (john  cavallino) writes:
>In article <1991Jun7.192453.11305@dartvax.dartmouth.edu> Brian.V.Hughes@dartmouth.edu (Brian V. Hughes) writes:
>>In article <1991Jun5.175401.14345@sequent.com>
>>lff@sequent.com (Lou Fernandez) writes:
>>    In terms of speed requirements, I wouldn't put anything slower that
>>80 Ns in any of the  newer Macs.
>
>The Apple specs say that the LC needs 120ns and the IIsi needs 100ns.
>

The LC needs 100ns or faster SIMMs.  This is clearly documented in Technical 
Note #176 "Macintosh Memory Configurations" on page 6.  On the upper left 
hand corner of the page there is a picture of the LC motherboard showing the
location of the SIMMs slots.  The caption reads

	Macintosh LC
(RAM SIMMs must be 100nS RAS-access time or faster)

This is stated again on page 7 under the heading of "Macintosh LC"

--Ron D.