Rainbow 100+ Memory Extension

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#852

From: Thomas Weichert
Date: Wed, 02 Jan 1991 05:08

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I have a heap of knowingly well working 41256 DRAM chips, that I want
to use to upgrade my 100+ to its full capacity!
The memory card excepts the chips as 4164 with switches 2+3 down and gives
me 384k Memory, but in UP-Position no workies anymore(Message 27)

Question1: What could be the problem with the card?
Question2: Are there any jumpers on the Mainboard to be set??


Thanx for any help offered out there in the world!!		Thomas

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!munnari.oz.au!mullauna!tw
From: tw@mullauna.cs.mu.OZ.AU (Thomas Weichert)
Newsgroups: comp.sys.dec.micro
Subject: Rainbow 100+ Memory Extension
Summary: Why doesn't it work?
Keywords: memory for 100+
Message-ID: <tw.662792885@mullauna>
Date: 2 Jan 91 05:08:05 GMT
Sender: news@cs.mu.oz.au
Lines: 10