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From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Attention: Commodore/Amiga Engineering!
Keywords: A3000 SCRAM 25MHZ OVERCLOCKING
Message-ID: <12303@cbmvax.commodore.com>
Date: 5 Jun 90 17:46:22 GMT
References: <1079@xroads.UUCP>
Reply-To: daveh@cbmvax (Dave Haynie)
Organization: Commodore, West Chester, PA
Lines: 28

In article <1079@xroads.UUCP> aman@xroads.UUCP (Chris Minshall) writes:

>I have two questions concerning the A3000 that I would like to know the
>answer to.  First, is the oscillator for the '882 and '030 on the motherboard
>socketed?  

No.  Neither are the 68030 or 68882.  

>If so, can it be replaced with, say, a 60 MHZ oscillator to get a 30 MHZ 
>'882 and '030?  

Since the rest of the chips in the system aren't likely to run at 30MHz any
more than the 25MHz 68030 or 68882, this is Not A Problem.  There are no
quick and dirty enhancements; if you want a faster system, you'll have to
wait until a real, correctly design Coprocessor slot card is available.

>Second, what kind of real world speed increase is realized using SCRAMS on 
>the 3000 instead of PAGE MODE DRAMS??  

We estimate about 20% speedup, though of course the increase is software
dependent.

>                                       Chris

-- 
Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
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	"I have been given the freedom to do as I see fit" -REM