firewire screwup

Ethan Benson erbenson at alaska.net
Thu Aug 30 08:44:55 EST 2001


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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