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From: xgr39@isuvax.iastate.edu (Marc Barrett)
Newsgroups: comp.sys.amiga.misc
Subject: Re: Just bought a "Power Up" A3000/25-50
Message-ID: <1991May14.211342.28429@news.iastate.edu>
Date: 14 May 91 21:13:42 GMT
References: <1991May5.003042.29062@menudo.uh.edu>,<6246@trantor.harris-atd.com>
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In article <6246@trantor.harris-atd.com>, mwills@x102a (wills ms 01309) writes:
>1. What would be involved in a later upgrade from 16MHz to 25MHz?  I'm
>told IBMers must swap entire motherboards.  Could it be only a faster
>cpu and different clock (new crystal or is it solid state?) here?

   In all of the A3000 models, the CPUs (68030 and 6888x) are soldered
and surface mounted.  The crystals are also soldered.  This means that
the direct upgrade (by replacing the CPUs and the crystal) is very,
very difficult.

   However, I have an upgrade for the A3000/16 that would make you much
happier than a simple upgrade from 16Mhz to 25Mhz.  The 16Mhz and 25Mhz
versions of the A3000 only differ in the CPUs and the crystal.  If you
have a card for the CPU slot that has its own 25Mhz clock, and you plug
this card into the A3000/16, your 16Mhz A3000 instantly becomes a 25Mhz
machine!

   This means that you can buy the A3000/16 now to save money, and then
upgrade to a 25Mhz 68040 system with Commodore's 68040 card for the 
A3000 when it comes out.  

>
>4. Which DOS ROMs will I find in a new A3000/25-50?  2.0X ?

   The A3000 currently comes with AmigaDOS 2.0, but not in ROM.  2.0 has
not been committed to ROM yet, for any Amigas.  When 2.0 is committed to
ROM, all A3000s will come with the 2.0 ROMs (and, as a result, 512K more
of usable memory).

>--
>
>					- Scott
>------------------------------------------------------------------------------
>M. Scott Wills,  Mail Stop: 102-4844     INTERNET: mwills@x102a.ess.harris.com
>Harris Corporation                       UUCP:     uunet!x102a!mwills
>Government Aerospace Systems Division    CCMail:   harris.mwills1
>P.O. Box 94000                           FAX:	   407-729-3211
>Melbourne, Florida 32902                 Voice:    407-729-3283
>------------------------------------------------------------------------------

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