Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!mips!public!eeh
From: eeh@public.BTR.COM (Eduardo E. Horvath  eeh@btr.com)
Newsgroups: comp.sys.amiga
Subject: Re: Upgrading A3000s
Message-ID: <435@public.BTR.COM>
Date: 20 Sep 90 16:05:18 GMT
References: <4497@crash.cts.com> <14546@cbmvax.commodore.com>
Organization: BTR Public Access UNIX, MtnView CA, Contact: cs@btr.com 415-966-1429
Lines: 23

In article <14546@cbmvax.commodore.com> daveh@cbmvax.commodore.com (Dave Haynie) writes:
[...]
>Actually, they have the same BUSTER chip.  The bus speed difference is the
>result of clocking BUSTER at 25MHz vs. 16MHz.  A Coprocessor slot device
>can run the entire A3000, except for 68030/68882, at 25MHz by supplying its
>own clocks, even on a 16MHz system.  The only had difference would be for
>a Coprocessor slot device that intends to keep the on-board 68030 active --
>obviously such a device can't run the motherboard at 25MHz when a 16MHz
>68030 is using it....

>Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"

	Does this mean that all of the other electronics on an A3000 16MHz
motherboard can run at 25MHz, like the RAM, timing delays, etc.?  All you
would need is a new '030 and and a new clock to switch to 25MHz.  (Plus a
lot of soldering on surface mount components.)


=========================================================================
Eduardo Horvath				eeh@btr.com
					..!{decwrl,mips,fernwood}!btr!eeh
	"Trust me, I know what I'm doing." - Sledge Hammer
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