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From: Ethan Benson <erbenson@alaska.net>
To: linuxppc-dev@lists.linuxppc.org
Subject: Re: firewire screwup
Date: Wed, 29 Aug 2001 14:44:55 -0800	[thread overview]
Message-ID: <20010829144455.P28241@plato.local.lan> (raw)
In-Reply-To: <p05100300b7b3044d8b12@[10.0.0.42]>; from tas@mindspring.com on Wed, Aug 29, 2001 at 01:48:51PM -0700

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On Wed, Aug 29, 2001 at 01:48:51PM -0700, Timothy A. Seufert wrote:
> At 4:16 AM -0800 8/29/01, Ethan Benson wrote:
> >On Wed, Aug 29, 2001 at 04:38:51AM -0700, Timothy A. Seufert wrote:
> >>
> >>  It isn't enough to remove the main battery of a PowerBook -- all Macs
> >>  and PowerBooks have a tiny internal backup battery which keeps the
> >>  real time clock and NVRAM contents alive when the normal power
> >>  sources are not present.  You have to disconnect it if you want to
> >>  reset anything.  You also need to allow time for all capacitors to
> >>  fully discharge before the NVRAM is truly cleared (it's battery
> >>  backed SRAM, and SRAM can keep its contents alive on microamps of
> >>  current).  Overnight usually seems to be enough.
> >
> >that won't even work on a NewWorld, since on newworld nvram contents
> >are stored in flash.
> 
> Did work on a New World for me (B&W).  Maybe only core99 & later use 
> flash for nvram?

no my machine is a blue g3.

-- 
Ethan Benson
http://www.alaska.net/~erbenson/

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  reply	other threads:[~2001-08-29 22:44 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-08-28 23:42 firewire screwup Marcus O.C. Metzler
2001-08-29  0:39 ` Timothy A. Seufert
2001-08-29  9:43   ` Marcus O.C. Metzler
2001-08-29 11:38     ` Timothy A. Seufert
2001-08-29 12:16       ` Ethan Benson
2001-08-29 16:10         ` Marcus O.C. Metzler
2001-08-29 23:28           ` Ethan Benson
2001-08-29 20:48         ` Timothy A. Seufert
2001-08-29 22:44           ` Ethan Benson [this message]
2001-08-29 23:55           ` firewire screwup (PB G4 reset procedure) Timothy A. Seufert
2001-08-30  8:48             ` Marcus O.C. Metzler
2001-08-30 19:08               ` Timothy A. Seufert
2001-08-30 19:51                 ` Marcus O.C. Metzler
     [not found]       ` <24B9ECF0-9CA2-11D5-8D61-003065B90BBC@apple.com>
2001-08-29 19:06         ` firewire screwup Marcus O.C. Metzler

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