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Re: Booting Linux on a SS2 with broken EPROM

I have a Sparc Station II, in which the Time keeper chip had died.  I
manager to solder a battery to the +- pin at the end of the chip (hidden
just beneath the epoxy at the end) and I have a fully fuctional sparc
(with a MAC address of 00:08:c0:ff:ee)


On Sun, 30 Sep 2001, Andreas Behnert wrote:

> (Sorry 'bout my poor English...)
> Fabbione wrote:
> >
> > I don't think I can replace the EPROM with a new one (are still
> > available?)...
> > 
> > Thanks a lot
> > Fabbione
> Yes, you can replace it and these "Timekeeper" ICs are still produced
> by SGS-Thomson and are still available. Replacing is really easy. Take
> a look at
> http://www.squirrel.com/sun-nvram-hostid.faq.html
> and please follow _exactly_ the steps shown in this manual.
> SS2 ist a "sun4c" or a "4/75" and this box uses a M48T02. AFAIK
> the speed of the M48T02 is not important as long as the new chip
> isn't slower than the original one. My SS2 had a 200ns, now I use
> a 150ns (because it was the cheapest one :-) - no problems ...
> The only bad thing is that if you get the message "Invalid format
> type..." you've already lost your original Ethernet-MAC-# , but the
> manual tells you how to create a new one ...
> Greetings from Germany
> Andreas

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