Path: utzoo!attcan!uunet!jarthur!spectre.ccsf.caltech.edu!tybalt.caltech.edu!madler
From: madler@tybalt.caltech.edu (Mark Adler)
Newsgroups: comp.sys.next
Subject: Re: 4 MB SIMMS prices? Anyone put 4 MB SIMMS in their cube?  What's the going price?
Message-ID: <1990Mar19.181957.21746@spectre.ccsf.caltech.edu>
Date: 19 Mar 90 18:19:57 GMT
References: <39smithw@physc1.byu.edu> <561@ccng.waterloo.edu>
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Organization: California Institute of Technology, Pasadena
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Speaking about 4MB SIMMs, I've been wondering about something.  When the
NeXT comes up, it reports various I/O devices at addresses like
0x2000000 + something (such as SCSI, sound, etc.), which is an address
at the 32MB boundary.  I wonder if this could interfere with expanding
the machine past 32MB?  It should be able to take 64MB on the main board.
I suppose the machine could map the memory further up, past the I/O
physical addresses, and you'd never know the difference.  But has anyone
(including NeXT) run the thing with 64 (or 48) meg of RAM?

Mark Adler
madler@hamlet.caltech.edu