Thanks for your thoughts.
You might want to know that once I changed the PRAM battery, and then re-set
Control Panels, my Type 28 error went away. Ergo, in a strange way, this
error WAS due to the failed PRAM battery. Let me explain....
Based on some limited research I did using a demo copy of Black & Bleu
version 1.1.1 (shareware application available from Bleu Rose,
www.bleurose.com, that was on a MacHome CD I was trying to read on the
CD-ROM drive; it has explanations for most Apple error codes), I found out
that a Type 28 was a general systems error. The detailed explanation talked
about "memory" issues -- something to do with stack/heap space.
That got me thinking. I checked "About this Mac" and it said my System was
occupying 31MB of the 36MB I had in memory. That seemed a bit excessive,
even for System 7.5.3.
I was re-reading LowEndMac FAQs, and came across the one with "why does my
Mac think it's 1956" --- again, pointing to the failed battery as the
culprit. But what really drove home the point was another FAQ's discussion
of how Memory could disappear --- related to a machine not keeping 32-bit
addressing set --- one of those settings that is directly affected to the
health & well-being of a PRAM battery. If the battery is dead, memory
control panel will re-set to 24-bit addressing ----- thus, making the Mac
think it has less memory than it does. I checked my Memory control panel,
and 32-bit addressing was OFF; thus my LCIII thought it had less than 36MB
of memory (even though "ABout..." said otherwise), I think that was the
cause of the Type 28 error.
I replaced the physical battery, re-started, re-set control panels, rebooted
-- and my problem has been solved. My "About...." now says my System is
occupying about 2MB -- which seems about right.
I may yet upgrade to 7.6 or 7.6.1, now that I can read CD's again, but the
system version did NOT seem to be the ultimate culprit here.
Cheers,
Chelley
---
[EMAIL PROTECTED]
> From: the pickle <[EMAIL PROTECTED]>
> Reply-To: <[EMAIL PROTECTED]> (Vintage Macs)
> Date: Tue, 24 Jul 2001 17:07:24 -0400
> To: <[EMAIL PROTECTED]> (Vintage Macs)
> Subject: Re: LCIII type 28 error
>
> At 12:43 -0400 on 24/07/01, Chelley Vician wrote:
>
>> When you startup an LCIII, and get an error message (Type 28), what does
>> that mean?
>>
>> Background:
>> I have an LCIII that is maxed out in RAM and has a 270MB drive. It has been
>> sitting in storage for a bit. I set it up yesterday and it booted fine,
>> although it appears that the PRAM battery is dead because it thinks it is
>> 1956. That aside, I tried connecting SCSI devices as I wish to use this
>> machine as a backup server for my other Macs. I could successfully connect
>> a SyQuest 230MB removable, my APS tape backup drive, and another external
>> hard drive. When I tried connecting my external 4X CD-Rom drive---by
>> itself, not with other SCSI devices (that used to be always connected to
>> this Mac), the Mac would not startup and would show the Type 28 error code.
>> I even tried re-installing FWB CD-Rom Toolkit and got the same results
>> (though it just said System error and did not give me the code).
>
> Methinks FWB and 7.5.5 don't get along too well; try upgrading to 7.6.1 or
> downgrading to 7.1 Update 3 and see what happens. 7.5.x was generally
> pretty buggy compared to 7.1 or 7.6.
>
> p
> _____________________________________________________
> the pickle
> The FAQ <http://macfaq.binhost.com/>
> The Archive <http://www.jmug.org/software/thepickle/>
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