Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!cs.utexas.edu!wuarchive!emory!utkcs2!meltblow
From: meltblow@utkux1.utk.edu (23KM4CJ7)
Newsgroups: comp.sys.mac.misc
Subject: LW-II NTX Memory Upgrade
Message-ID: <1990Oct10.020235.1490@cs.utk.edu>
Date: 10 Oct 90 02:02:35 GMT
Sender: news@cs.utk.edu (USENET News System)
Reply-To: meltblow@utkux1.utk.edu (23KM4CJ7)
Distribution: usa
Organization: University of Tennessee Computing Center, Knoxville
Lines: 30

Has anyone ever performed a memory upgrade on an Apple LaserWriter II
NTX?  I just upgraded a standard 2MB NTX system board with the 4MB
Apple LW Expansion kit, and only got 5MB, instead of the expected 6MB,
to show on the test page.  The procedure I followed was:

1.   Moved the 4-256K simms from Bank 0 to Bank 2.
2.   Left the 4-256K simms in Bank 1 untouched.
3.   Put the 4-1MB simms from the kit in Bank 0.

Recall that the banks on the system board are numbered from RIGHT to
LEFT 0, 1, and 2; that each bank has four simm slots; and that the original
2MB configuration has banks 0 and 1 filled with 256K simms, with bank 2
being empty.

Is 6MB an impossible number?  Do I need to change the order of the
simms.  I was the following the 3 rules for installing Apple Memory, namely:

1.   Insure that simms of like density are in the same bank.
2.   Completely fill a bank.
3.   Put the higher density chips in the lower numbered (or lettered) bank. 
     These are the three rules we use when upgrading Macs.

Suggestions, comments, even (ghast!) flames???

Thanks.
--
Who:	L. Jack Wilson
What:	UTK OAC Microsupport
Where:	lwilson@utkvx3 (Bitnet)
Why:	Standard Disclaimer fits nicely here.