Re: IIgs Rom1 _weirdness_

[nparker@cie-2.uoregon.edu (Neil Parker)]

In article <5cr8u8$1ae$1@portal.mbnet.mb.ca> tmyers@autobahn.mb.ca (Todd
Myers) writes:
>[...]
>A minimal System6.0.1 boots from 800k floppies leaving ~400k free. I
>have tried a 1.44 ProDOS 6.0.1 boot disk...$0046 error or 'cannot load
>Start.GSOS file'...this is also the error I get when trying to boot
>from the HD (the Quantum is terminated and supplies term power, bought
>from TMS about a year before they folded). I also get $0911 errors
>after it's been on for about 30 min., the HD is on top of the GS box
>and it has a fan on the bottom for air flow thru the GS.
>
>I tried to fire it up about 4 months ago using a IIc monitor, but got
>$0911 errors at powerup...I could not even bring up the text Control
>Panel.

As someone else posted, the $0046 error indicates that something is missing
from your boot disk.

Error $0911 comes from the keyboard microcontroller chip, and indicates
that the chip is operating (or, rather, failing to operate) outside of its
normal termperature range.  There seems to be some confusion over whether
the chip is too hot or too cold, but the authorities are agreed that it's
temperature-related.

I used to get error $0911 frequently on my IIGS, until I started running it
with the lid open.  For the past few years I've been in the habit of taking
the lid off whenever I turn the machine on, and since I've been doing that,
I've hardly ever seen error $0911.


If you care about obscure technical details, error $0911 happens when the
IIGS tries to reset the keyboard microcontroller and resynchronize with it,
and the keyboard microcontroller fails to respond to the request within a
certain amount of time.  The IIGS tries to reset the microcontroller at
power-on, and when you press RESET, and when you're in the control panel.

                   - Neil Parker