Path: utzoo!utgpu!watmath!att!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!csd4.csd.uwm.edu!cs.utexas.edu!usc!apple!dlyons
From: dlyons@Apple.COM (David Lyons)
Newsgroups: comp.sys.apple
Subject: Re: Error Message
Message-ID: <34021@apple.Apple.COM>
Date: 15 Aug 89 18:01:22 GMT
References: <8908150805.AA14433@trout.nosc.mil>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 37

In article <8908150805.AA14433@trout.nosc.mil> lhaider@pro-sol.cts.com (Lawrence Haider) writes:
>Had a problem with my gs today.  Whenever I tried accessing my CDA menu by
>hitting OA-Ctrl-Esc my system crashed with Error $0000.  This was a little
>disturbing after the fourth reboot and getting the same thing, so I tried a
>self test by hitting OA-Option-Ctrl-Reset.  After doing its thing for a while,
>it made a high pitched beep and put on the screen something like:
>0901001
> 0901001
>  0901001
>System bad:  Error 0901001
>[...]  After powering the system down for several minutes then powering
>back up, I again ran the self test and got - System Good!

Fatal System Error 0911 and System Bad 09010001 mean that the system had
trouble synchronizing with the Apple Desktop Bus microcontroller chip (the
"key micro").  This happens to me sometimes on my system at home, just like
you describe (problem goes away after powering down for a few minutes).

(Are you really getting Error $0000, not $0911?  I don't understand that.)

Besides when you hit Apple-Ctrl-ESC, the system also synchronizes with the
ADB chip when you power on or hit Control-Reset, with or without Apple
and/or Option, and when you make changes to Battery-RAM values (for example,
using either the Control Panel CDA or the Control Panel NDA)--so you can
get fatal errors at these times, too.

Some users have decided the problem is heat-related; some have decided it's
related to an overloaded power supply.

 --Dave Lyons, Apple Computer, Inc.          |   DAL Systems
   AppleLink--Apple Edition: DAVE.LYONS      |   P.O. Box 875
   AppleLink--Personal Edition: Dave Lyons   |   Cupertino, CA 95015-0875
   GEnie: D.LYONS2 or DAVE.LYONS         CompuServe: 72177,3233
   Internet/BITNET:  dlyons@apple.com    UUCP:  ...!ames!apple!dlyons

   My opinions are my own, not Apple's.