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From: gilgalad@dip.eecs.umich.edu (Ralph Seguin)
Newsgroups: comp.sys.amiga
Subject: Re: Upgrading A3000/16.
Message-ID: <2173@zipeecs.umich.edu>
Date: 4 May 90 14:36:55 GMT
References: <18447@snow-white.udel.EDU>
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Organization: University of Michigan EECS Dept., Ann Arbor, MI
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In article <18447@snow-white.udel.EDU> BARRETT@forest.ecil.iastate.edu (Marc Barrett) writes:
>
>   But I have a question about performing the upgrade a different way.
>The CPU slot is ideal for putting a faster cpu and cache memory into
>the system; a 40Mhz 68030/68882 with cache memory would be an ideal
>upgrade, as would a 33Mhz '040 w/cache.

A 25 MHz 040 would also be incredible.  The 040 has incredible processing
power.  I wonder how long until C= releases their 040 boards ...  The C=
crew is probably already done, and probably just waiting for the 040 to get
up to production.

>   My question is: would it be possible to design such accelerator
>boards to achieve the same performance when they are plugged into
>the A3000/16 as when they are plugged into the A3000/25?

Sure.  It runs async to the rest of the system.  It is just like the 2630
card for the 2000 (or GVPs boards, or  ...).  I think that it would be
hard to design them otherwise.

>   My idea would be to design the accelerator such that, if they
>were plugged into the A3000/16, they would boost the speed of the
>custom chips to the speeds that they run at on the A3000/25.

The custom chips still run at normal Amiga clock rates.  This is to retain
backwards compatability.

>
>                                   -MB-

			See ya, Ralph

 
gilgalad@caen.engin.umich.edu     gilgalad@dip.eecs.umich.edu
gilgalad@goliath.eecs.umich.edu   Ralph_Seguin@ub.cc.umich.edu
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