Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!sun-barr!apple!oliveb!amiga!cbmvax!daveh
From: daveh@cbmvax.UUCP (Dave Haynie)
Newsgroups: comp.sys.amiga
Subject: Re: New Agnus for older B2000s
Message-ID: <7348@cbmvax.UUCP>
Date: 18 Jul 89 16:50:51 GMT
References: <274@vuecon.econ.vu.nl>
Organization: Commodore Technology, West Chester, PA
Lines: 27

in article <274@vuecon.econ.vu.nl>, niesemc@econ.vu.nl (Marco Niese) says:
> Keywords: New Agnus, B2000

> Sorry to bother the net for this, but...

> could a reliable source at Commodore (best would be Dave Haynie) give a final
> statement here on the net about the New 1MB Agnus working in older (pre-rev.6)
> B2000s?

The 1 Meg Agnus works in all B2000s.  There are two or three jumpers to change
to install it correctly (J101 is moved, J500 is removed or cut depending on
how your board was assembled, and J102 is cut if you want to come up PAL
instead of NTSC).  The Rev 6 board _requires_ the 1 Meg Agnus for support of
refresh on it's 256K x 4 DRAMs, but it will work in every revision of the
B2000 ever shipped.

It will not work on the original A2000, which may be available in the
Netherlands as well as other parts of Europe.  The easiest way to identify
the type of motherboard in your system is to see how many RCA phono jacks
you have in the back of the machine: there are 2 on the "A" board, 3 on
the "B" board.  

> | #      #  #    # |  Marco Niese                          |            ////  |
-- 
Dave Haynie Commodore-Amiga (Systems Engineering) "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: D-DAVE H     BIX: hazy
           Be careful what you wish for -- you just might get it