Re: Unclaimed Sound Interrupt?

["ict@ccess" <gids.rs@sasktel.net>]

On Nov 13, 10:41 pm, oz390gta <oz390...@gmail.com> wrote:
> On Nov 14, 1:40 pm, Sheppy <the.she...@gmail.com> wrote:
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> > On Nov 13, 9:01 pm, oz390gta <oz390...@gmail.com> wrote:
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> > > My vanilla ROM01 IIgs has just started giving me a blue screen with
> > > the words "Unclaimed sound Interrupt" in flashing letters whenever it
> > > tries to boot from a mass storage device.
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> > There are a few things I recommend trying here:
>
> > 1. Pull your memory card and use a pencil eraser to gently clean the
> > contacts on the card's connector. Then wipe it off with a clean cloth
> > and reinstall it.
>
> > 2. Give all the socketed chips on the motherboard a gental push to be
> > sure they're all well seated.
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> > 3. Pull the keyboard off, see if starting without it connected works,
> > then reconnect it.
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> > This problem can often happen because of bad RAM or bad contact with
> > the RAM card, or a poorly seated chip (especially the sound chip up
> > near the sound connector, but it's happened to me with others).
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> > It can also happen when the ADB connection to the keyboard and/or
> > mouse is bad.
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> > Sheppy
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> OK, now it gets weird. I have used multiple keyboards, mice and ADB
> cables so they are not it. I have taken the memory card out so it is
> not that, checked for any loose chips.
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>  It is still happening with the reproducible results below-
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> Results with CFFA Card in any slot:
> -turn on power, boots fine, apple-ctrl-reset at any time after initial
> power up, crash with "Unclaimed Sound Interrupt" error.
>
> Results with Focus Card in any slot:
> -turn on power, freezes on initial "Apple IIgs" boot screen, apple-
> ctrl-esc (to get to control panel) results in crash with "Unclaimed
> Sound Interrupt" error.
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> Both these a conditions are reproducible every time.
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> Any other ideas?
>
> oz390gta


Unplug all cards and drives.  Start up the computer.  Hit Ctrl-Reset
to get to the applesoft prompt.  Now press apple-ctrl-esc to get to
the control panel.  If you can get this far without the error, then
the motherboard should??? be ok.

Does the error only happen when trying to boot from a CF card or
microdrive?  What about Prodos8 from a floppy and the card still
plugged in or unplugged?

What does the self test say?

Do you have a Hyper Studio microphone card that plugs into the row of
connectors just in front of the RAM slot?  Unplug and try again.

Also checking for loose chips is not the same as removing and re-
seating chips as they can still be corroded or oxidized and not have a
good connection.

Rob