Re: Unclaimed Sound Interrupt?

[oz390gta <oz390gta@gmail.com>]

On Nov 16, 5:18 pm, oz390gta <oz390...@gmail.com> wrote:
> On Nov 15, 4:14 am, Grent <gre...@gmail.com> wrote:
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> > On Nov 14, 1:07 am, "ict@ccess" <gids...@sasktel.net> wrote:
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> > > On Nov 13, 10:41 pm, oz390gta <oz390...@gmail.com> wrote:
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> > > > 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:
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> > > > > 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.
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> > > > > 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.
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> > > > 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?
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> > > > oz390gta
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> > > 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.
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> > > 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?
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> > > What does the self test say?
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> > > 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.
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> > > 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.
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> > > Rob
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> > I am wondering if a weak power supply might be causing this?
>
> It will boot from a Prodos 3.5 or 5.25 floppy but hangs with the
> interrupt error if it is a GS/OS 6.01 boot floppy. I will try another
> power supply also.
>
> oz390gta

Same results with numerous power supplies.

oz390gta