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SE/30 and MODE32

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Robert Flossmann

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Aug 21, 2002, 5:22:13 PM8/21/02
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Hi all,

I am trying to make my newly acquired SE/30 recognize its implanted 32MB

of RAM.

I have used German System 7.5.3 and 7.0.1. I have downloaded the most

current MODE32 and an older version of this program. Now this happens:

With the older version of MODE32, the Mac boots up fine, but still all

memory is given to the Finder.

With the newer version of MODE32, the Mac crashes at the "Welcome to

Macintosh." screen (just dies showing this screen). If I bypass MODE32

by pressing ESC during bootup, everything is just fine.

Any ideas? I am using 4MBx9 (parity) simms with (I think) 60ns access

time.

Please help!

thanks in advance, Robert

frank perrey

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Aug 21, 2002, 6:59:17 PM8/21/02
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Robert Flossmann <robert.f...@freenet.de> wrote:

> With the older version of MODE32, the Mac boots up fine, but still all
> memory is given to the Finder.

..that is what normally happens if you forget to switch on
"32-bit-Adressierung" in the control panel "Speicher" (having more than
8MBs built in or in combination with virtual memory) under MacOS 7.5.3
Revion 2.
My old SE/30 runs with it, 69.632k of Ram and "MODE32, Version 7.5©1991,
1994 Connectix Corporation" The same version can be used under 7.1.
Really don't know about 7.0.1, maybe it's conflicting there...But with
32MBs there are less reasons to take MacOS below 7.5.3, which seems to
be quite perfect for those little machines. On mine I just managed to go
DSL:-))
Greetings Frank

--
___________________________________________

Robert Flossmann

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Aug 22, 2002, 3:44:39 AM8/22/02
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However, if I switch it on, it either does so all the same (older
version) or stalls the machine (newer version).
I'm more than puzzled ...

Robert

frank perrey

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Aug 22, 2002, 5:59:56 AM8/22/02
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ich leite es mal hierher (hoffe so darf ich das...)
Gruss Frank

Robert Flossmann <robert.f...@freenet.de> wrote:


--
___________________________________________

David Empson

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Aug 22, 2002, 6:15:16 AM8/22/02
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Robert Flossmann <robert.f...@freenet.de> wrote:

> I am trying to make my newly acquired SE/30 recognize its implanted 32MB
> of RAM.
>
> I have used German System 7.5.3 and 7.0.1. I have downloaded the most
> current MODE32 and an older version of this program.

There is a version of Mode32 which is specifically for use with System
7.5.x (called something obvious like "Mode32 7.5"). I don't know
whether it also works on older systems, but the older version of Mode32
definitely doesn't work on 7.5.x.

When I had a working SE/30 (a couple of years ago - it doesn't start up
any more) I managed to get it working with 20 MB of RAM using System
7.5.3 and Mode32 7.5.

> With the older version of MODE32, the Mac boots up fine, but still all
> memory is given to the Finder.

i.e. Mode32 isn't actually operating.

> With the newer version of MODE32, the Mac crashes at the "Welcome to
> Macintosh." screen (just dies showing this screen). If I bypass MODE32
> by pressing ESC during bootup, everything is just fine.

Have you tried removing other extensions? You might have something
installed which is not 32-bit clean.

> Any ideas? I am using 4MBx9 (parity) simms with (I think) 60ns access
> time.

The parity bit should be irrelevant, and the access speed is fine.

You might have problems if you are using some kind of composite SIMM
rather than one which has simple 4Mx1 and/or 4Mx4 RAM chips.

--
David Empson
dem...@actrix.gen.nz

Hauke Fath

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Aug 23, 2002, 2:35:18 PM8/23/02
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Robert Flossmann <robert.f...@freenet.de> wrote:

> With the newer version of MODE32, the Mac crashes at the "Welcome to
> Macintosh." screen (just dies showing this screen). If I bypass MODE32
> by pressing ESC during bootup, everything is just fine.

What disk (manufacturer, type) does the Mac have?

A while back, I tried to set up my SE/30 with a 540MB Conner disk, and
could not for the life of me boot the machine in 32bit mode. It would
either come up 24bit or hang with a flickering 'Welcome to Macintosh'
screen (or the German equivalent).

Systems installed on other disks came up fine.

After googling extensively, I found out that there was at least one
Mode32 update that intended to fix incompatibilities with some scsi
disks. Now, the Conner disk wasn't too popular and mostly used in
servers, so apparently it wasn't covered by the fix.

hauke

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Robert Flossmann

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Aug 23, 2002, 6:39:50 PM8/23/02
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Aaalll right,

my SE/30 now has 20Megs of main memory, it turned out that one set of
4MB Simms wouldn't be accepted by the machine and would cause all sorts
of strange behaviour.

thanks for all the help, Robert

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