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- Newsgroups: comp.sys.amiga.misc
- Path: sparky!uunet!usc!sdd.hp.com!ux1.cso.uiuc.edu!news.iastate.edu!barrett
- From: barrett@iastate.edu (Marc N Barrett)
- Subject: Re: AA & A3000???
- Message-ID: <1992Sep14.075004.21751@news.iastate.edu>
- Sender: news@news.iastate.edu (USENET News System)
- Organization: Iowa State University, Ames, IA
- References: <92256.230906JBK4@psuvm.psu.edu> <1992Sep13.174410.20796@nntp.uoregon.edu>
- Date: Mon, 14 Sep 1992 07:50:04 GMT
- Lines: 43
-
- In article <1992Sep13.174410.20796@nntp.uoregon.edu> ggiles@cie.uoregon.edu (Gregg Giles) writes:
- >In article <92256.230906JBK4@psuvm.psu.edu> JBK4@psuvm.psu.edu writes:
- >>How will the AA chipset be installed in existing 3000 machines? A ZorroIII
- >>board, something in the CPU slot, or a more radical mother-board swap?
- >>Inquiring 3000 owners want to kNOW.
- >
- > I think I answered this in another newsgroup already, but here goes:
- > You can't put the AGA chips in the A3000. Plain and simple. The AGA chips
- >require more system bandwidth than the A3000 has (four times more, as a matter
- >of fact). It's not going to happen. Even if a hack got the AGA chips running
- >in an A3000, the chips couldn't make use of the new graphics modes because
- >the bandwidth isn't there.
- > Did I say that the bandwidth isn't there? Well, it isn't.
- > Oh, BTW, the bandwidth isn't there.
- > It's not going to happen.
-
- Remember when the A3000 came out, and Commodore reps and engineers said that
- it was 'impossible' to get the 2M Agnus chip to work in A500s and A2000s? A
- friend of mine recently designed a 2M Agnus adapter board for the A500 and
- A2000 in his free time that uses ONE chip in addition to the Agnus chip. Third
- parties have had adapter boards available for about a year.
-
- OK, the bandwidth isn't there. Yes, I realize that the bandwidth isn't
- there. I assure you that I am FULLY AWARE that the bandwidth isn't there.
- But what does bandwidth have to do with it? The chips would go on a card
- for the CPU slot, with the same electronic connection to the CPU that the
- AGA chips in the A4000 have. It would probably necessitate unplugging
- the ECS agnus and Denise, transferring the Paula to the AGA board in the
- CPU slot, and disabling the chip RAM on the motherboard and replacing it
- with the faster chip RAM on the AGA board, but it would be totally
- feasible. If the market is big enough for it, count on it being developed
- by a third-party company eventually. (Heck, hackers like my friend will
- probably develop it anyway for the challenge)
-
- >--
- >----------------------------------------------------------------------------
- >Gregg Giles (Dynamix, Inc.) BIX: ggiles
- >All opinions expressed are my own. Internet: ggiles@cie.uoregon.edu
- >----------------------------------------------------------------------------
-
- ---
- | Marc Barrett -MB- | email: barrett@iastate.edu
- --------------------------------------------------
-