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Re: R4600PC upgrade

Subject: Re: R4600PC upgrade
From: Jeremy John Welling <>
Date: Fri, 9 Oct 1998 19:17:16 -0400 (EDT)
In-reply-to: <>
I agree.  I got a message almost exactly like this when I went from 4400
to 5000.  I have still have my 4400 prom if you need it.  Just let me know
where to send it.

Jeremy Welling

On Thu, 8 Oct 1998, William J. Earl wrote:

> Ulf Carlsson writes:
>  > Hi,
>  > 
>  > I received a R4600PC today (thanks Lukas), and I happily went to my Indy
>  > and plugged it in instead of my R4000SC. It failed on the diagnostics test
>  > though. 
> ...
>      If your machine is an early R4000SC machine, you may well need a new
> PROM to go with the newer processor.  The final PROM, supplied with all
> R5000 systems, works with all processors, but a given older PROM generally
> does not work with newer processors.  The error message looks like the
> result of using an obsolete PROM.

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