Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!umich!sharkey!sbcs!eeserv1.ic.sunysb.edu!dtiberio
From: dtiberio@eeserv1.ic.sunysb.edu (David Tiberio)
Newsgroups: comp.sys.amiga.misc
Subject: Re: Agnus
Message-ID: <1991Apr20.014603.21783@sbcs.sunysb.edu>
Date: 20 Apr 91 01:46:03 GMT
References: <1991Apr17.082037.27978@cs.uow.edu.au>
Sender: usenet@sbcs.sunysb.edu (Usenet poster)
Organization: State University of New York at Stony Brook
Lines: 51

In article <1991Apr17.082037.27978@cs.uow.edu.au> u9050728@cs.uow.edu.au (Shane Kelvin Richards) writes:
>
>	Hi, I am a new Amiga Owner. I have the latest Amiga 2000 with 1meg
>of chip ram. A couple of things people may be able to clarify for me. Firstly,
>how many different Agnus chip versions are they, what is there names and what
>is the differences between the models.

  There are probably 4 versions. I think the model numbers are 8370, 8371,
8372, and 8372a. 

  Agnus - A1000, 512k chip
  Fat Agnus 8370 - A500, A2000, 512k chip, NTSC
  Fat Agnus 8371 - A500, A2000, 512k chip, PAL
  Fatter Agnus 8372 - A2000, maybe A500,1 meg chip, NTSC, PAL
  Super Agnus - A3000,2 meg chip, NTSC, PAL

  I have also heard of Obese Agnus, and the MegaChip.

>	Secondly, I don't understand why there is 2 pieces of ram, fast and
>chip. Why have 2? What is the differences? I have 1 meg of chip ram, how is
>this going to affect me?
>

  chip ram - needed to run more applications, larger screen graphics/colors,
             larger sound bytes, directly accesible by custom chips

  slow/fast ram - seems to be due to A500 hardware in the internal slot

  fast ram - 4 times faster than chip ram


  You can alter ram configurations with FastMemFirst, Addbuffers, and from
the BuffMemType of the devs:mountlist.

>	Can people please EMAIL me if they can help. Thanks.

  Okay, I will EMAIL too!

>
>-- 
>+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
>Shane Richards
>u9050728@cs.uow.edu.au
>+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-


-- 
    David Tiberio  SUNY Stony Brook 2-3481  AMIGA  DDD-MEN  Tomas Arce 
           Any students from SUNY Oswego? Please let me know! :)

                   Un ragazzo di Casalbordino, Italia.