Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!husc6!hao!ames!sdcsvax!jww
From: jww@sdcsvax.UCSD.EDU (Joel West)
Newsgroups: comp.sys.mac
Subject: Re: SIMM RAM for the MacII
Message-ID: <3786@sdcsvax.UCSD.EDU>
Date: Fri, 4-Sep-87 10:53:36 EDT
Article-I.D.: sdcsvax.3786
Posted: Fri Sep  4 10:53:36 1987
Date-Received: Sat, 5-Sep-87 17:50:52 EDT
References: <20389@ucbvax.BERKELEY.EDU>
Organization: Palomar Software, Inc., Vista, CA
Lines: 15

A friend who'd unsuccessfully bought two third-party SIMM upgrades
for his II may have found the problem.  Turns out he didn't have the
same initial SIMM bank as everyone else -- i.e., it was from a
different manufacturer.  The local guru at Levco suggested that
adding a second bank of RAM, not from that manufacturer, would
probably screw up the timing -- particularly if the second bank
of RAM became ready (on each cycle) before the first.

Wish I had the manufacturer's names to offer more.  But this might
explain why some of these upgrades work for some, not all.
-- 
	Joel West  (c/o UCSD)
	Palomar Software, Inc., P.O. Box 2635, Vista, CA  92083
	{ucbvax,ihnp4}!sdcsvax!jww 	jww@sdcsvax.ucsd.edu
   or	ihnp4!crash!palomar!joel	joel@palomar.cts.com