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From: daveh@cbmvax.commodore.com (Dave Haynie)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Large amounts of memory in a A3000 (64 meg+)
Keywords: memory
Message-ID: <19106@cbmvax.commodore.com>
Date: 19 Feb 91 14:25:32 GMT
References: <1991Feb18.214827.10775@watdragon.waterloo.edu>
Reply-To: daveh@cbmvax.commodore.com (Dave Haynie)
Organization: Commodore, West Chester, PA
Lines: 39

In article <1991Feb18.214827.10775@watdragon.waterloo.edu> wewallac@watsol.waterloo.edu (Bill Wallace) writes:
>Does anyone have suggestions for how to get a large amount of memory in a 
>A3000? I am interested in having 64 Megbytes, 96 or 128 would be better.  

At this exact moment, you'd have to build it yourself.  So far, at least, there
aren't any Zorro III memory boards that I know of out on the market.  Any 
company wishing to design one could base it on the example I did for last
June's DevCon in Atlanta.  That example is fully tested, we have four working
samples.  The board supports up to 32 MB.  

It has been slightly over a year since we started sending out A3000/Zorro III 
docs.  It takes somewhere between two weeks (the total design, layout, and
debug time for the example memory board) and a year or so to get a producable
memory design going, depending on how important it is.  

The main issue, I imagine, is marketing.  MOST A3000 owners don't need memory 
beyond the 18MB on the motherboard.  And there aren't comparatively all that
many A3000 owners.  So anyone building an A3000 memory board for real 
commercial production will probably need to consider the A2000 as well, which
makes the design more complex.

>Also, running a single, debugged, program, does anyone know how long between 
>crashes on an A3000?  

I ran one for a month once, a variety of test programs going between three
different hard disks on the A3000 (Hardframe, A2091, and internal), but had to
shut it off since I needed the system for other things.  At some times of the
year, we don't have uninterrupted power here for more than a month, but there's
no other reason that setup wouldn't still be running if I hadn't taken it 
down.

>Bill Wallace
>New OED


-- 
Dave Haynie Commodore-Amiga (Amiga 3000) "The Crew That Never Rests"
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	"What works for me might work for you"	-Jimmy Buffett