Path: utzoo!attcan!uunet!cs.utexas.edu!uwm.edu!rpi!batcomputer!pottle
From: pottle@batcomputer.tn.cornell.edu (Chris Pottle)
Newsgroups: comp.sys.mac.hardware
Subject: Thoroughness of Mac Boottime Memory Test
Message-ID: <9805@batcomputer.tn.cornell.edu>
Date: 27 Feb 90 15:37:48 GMT
Reply-To: pottle@tcgould.tn.cornell.edu (Chris Pottle)
Distribution: na
Organization: College of Engineering, Cornell University, Ithaca NY
Lines: 13

I recently purchased 4MB of SIMM memory. I installed 2MB in each of two
practically identical Mac Pluses, both upgrades from 512Ks. Each Plus has
a DataFrame hard disk (one with a much older driver than the other). One of
the machines seems to work perfectly. The other crashes in several
spectacular ways when applications are launched under Multifinder (Excel is
an exception). I swapped the hard disks, expecting the problem to move
with the disks. It didn't - the problem is with the machine. I understand
applications load in different areas of memory under Multifinder than under
Finder. Question: How thorough is the memory test done at startup (both
machines pass this test)? Can anyone provide me with a memory diagnostic
application which will tell me if one of my SIMMs is bad?

Chris Pottle (pottle@tcgould.tn.cornell.edu)