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From: jwl@Feanor.Stanford.EDU (John Lockhart)
Newsgroups: comp.sys.amiga
Subject: Re: Agnus Woes
Keywords: 1000, agnus
Message-ID: <10737@polya.Stanford.EDU>
Date: 20 Jul 89 01:37:42 GMT
References: <12511293071015@osu-20.ircc.ohio-state.edu>
Sender: USENET News System <news@Polya.Stanford.EDU>
Reply-To: jwl@Feanor.Stanford.EDU (John Lockhart)
Organization: None
Lines: 64

In article <12511293071015@osu-20.ircc.ohio-state.edu>,
LARSEN-D@osu-20.ircc.ohio-state.edu (YUCKO Broccoli) writes:

>I called up my local amiga dealer all excited about getting fat agnus for 
>my 1000.  Much to my disappointment I was told it couldn't be done.  Maybe
  [stuff deleted]
>LARSEN-D@OSU-20.IRCC.OHIO-STATE.EDU


Not only can it be done, it *has* been done.  Here's the relevant 
portion of the message which the new board's designer left on BIX:

 ================================================

From: gbtibbs (Gregory B. Tibbs, Miamisburg, OH)
Date: Tuesday, July 18, 1989. 09:48:08 EDT

1) Allows use of the New 1 Meg Agnus by replacing WCS with a new PCB

2) Contains 1 Meg of chip ram on daughterboard

3) Motherboard chip ram becomes fast ram

4) Provision for A500/a2000 style ROM or converting 256K of motherbd
   ram into write protected WCS.
    
5) Support for 1 Meg motherboard RAM conversion
    
6) OKI clock chip at correct address
    
7) A2000 style video slot subset - no parallel or audio support
    
8) No modifications to the motherboard
    
9) A minimum of three wires are needed to go from the daughterboard
   to the motherboard (others are optional for video slot).
	
10) Jumpers control motherboard RAM addressing to remove electronic
    conflicts with other internal RAM expansions. If not a $c00000
    then memory must be 'addmemed' in.
		
11) As of today all but items 4 and 7 above have been checked out and
    made 100% operational. My A1000 was built from dealer 'junk'
    and had no boot ROMS and I lack the proper 36 pin connectors to
    test the video slot. These will be remedied this week.
			       
    -Greg
  =========== end of message ===========================

So yes, there's hope for A1000 owners.

No, I don't have any more information---this may be released commercially,
semi-commercially, or as a LUCAS-like project.  I have no idea how much
it might cost, or when it might be available, or how difficult it might
be to install or set up.  Sorry.  The best way to ask questions is
to join BIX (flat rate is relatively cheap) and ask Greg :-)  I might
summarize any news, but I'd expect that it'll be a while before there's
anything major to report.

   -- John

-------------------------------------------------------------------------------
                         -- John Lockhart
               jwl@feanor.stanford.edu  BIX: jlockhart