Subject: Re: openfirmware hardware reset ?
To: Michael Lorenz <macallan1888@gmail.com>
From: Bill Stouder-Studenmund <wrstuden@netbsd.org>
List: port-macppc
Date: 05/17/2007 16:06:45
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On Thu, May 17, 2007 at 03:39:57PM -0400, Michael Lorenz wrote:
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> Hello,
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> On May 17, 2007, at 15:31, pierre-philipp braun wrote:
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> >I've got several UMAX Apus 2000 (C500) and while playing with=20
> >openfirmware (2.0) on one of them, I did something very wrong,
> > setenv little-endian? true
> >
> >Now, when powering on the machine, I still got the bell, but,
> > - nothing appears on screen nor serial console
> > - cmd-alt-p-r doesn't work
> > - cmd-alt-n-v doesn't help
> > - neither does the little reset button on motherbord, which needs to=20
> >be pressed while machine is on and makes it reboot
> > - neither getting motherboard's battery disconnected 20 minutes
> >
> >Any idea on how to get my openfirmware fixed ?
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> Take the battery out again, pull the power plug, short circuit the=20
> battery socket's contacts to drain any capacitors that may still be=20
> holding some charge, then wait a little longer than 20 minutes. My S900=
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> took a couple hours to lose its nvram contents so letting it sit like=20
> that over night should very likely do the trick.
Yeah, my experience from the two times I REALLY REALLY hozed my G3 is that=
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it takes over ten minutes to drain everything. So half an hour is good,=20
and a few hours wouldn't hurt.
Take care,
Bill
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