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From: dpawson@oracle.com
Newsgroups: comp.sys.mac.hardware
Subject: Mac ci problems
Message-ID: <1990Oct25.215521.8370@oracle.com>
Date: 25 Oct 90 21:55:21 GMT
Reply-To: dpawson@oracle.com ()
Organization: Oracle Corporation, Belmont, CA
Lines: 29

Hi folks. . .
I posted a message yesterday about this, but it never showed up and may never
show up, so here is a brief try again.
I recently bought a used IIci and have had a ton of problems.  Very random 
hangs and crashes.  I had noted that they always seemed to occur when I pressed
the mouse at some point, but perhaps this is more important: a few times I
have gone to boot and have gotten a bad hardware song.  It was a beep followed
by four ascending beeps.  Someone today told me that this probably indicates
a memory problem.  Sound correct?  If so, I would like to locate the problem 
further.  First question:
   Is it the IIci that can automatically detect how much memory is present?
Second question:
   If this is true, does this sound like a good approach: remove one bank of
   memory at a time (always having the existing bank in the low slots of 
   course).  If I am able to duplicate an error with one of the banks in and
   not the other, then substitute a simm from the good set for each of the
   simms in the bad set in turn until I get a set of 4 simms that works.  
   I then know that the simm from the bad set that is currently replaced is
   the offender.  Of course if I have multiple bad simms. . . :-(
Third question:
   If it turns out I have a flakey simm, it would seem reasonable to me that
   this could cause many spurious problems and crashes like I have experienced.
   Does this sound right to you folks out there?

Please let me know as soon as possible.  Post or mail, probably won't make
much of a difference.
      	       	     	      	       	     Thanks!!!
      	       	     	      	       	     Dave Pawson
      	       	     	      	       	     dpawson@oracle.com