Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!isis!chanson
From: chanson@isis.cs.du.edu (Chris Hanson)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: help on installing 1meg agnus ...
Summary: You may not want to...
Keywords: Weird, 1meg, Agnus, Commodore, WARRANTY, Fat, etc.
Message-ID: <1990Oct13.035003.3737@isis.cs.du.edu>
Date: 13 Oct 90 03:50:03 GMT
References: <12411@chaph.usc.edu>
Reply-To: chanson@isis.UUCP (Chris Hanson)
Organization: Matrix
Lines: 39


  We (Progressive Peripherals & Software) got a fax the other day from
Commodore. No explanation of it has followed, and I presume other dealers
and developers got it. (At least, I hope so.)
 
  It reads as follows:
{---cut here ---}
One Megabyte Agnus use in
Commodore A500 Computers

Commodore Business Machines does not support the One Megabyte
addressing feature of the Fat Agnus 8372 IC in A500 Computers.

Regardless of the version of Fat Agnus, all A500's have been factory
jumper set to be functionall identical.

8370 Fat Agnus chips are used on rev 5 boards with 256K x 1 DRAMS.
8372 Fat Agnus chips are used on rev 6a boards with 256K x 4 DRAMS.
The boards are functionall interchangable. Each will support 512K of
chip RAM and 512K of expansion RAM with an A501 installed.

Enabling the One Megabyte feature, at the customers' request, will
void the warranty. Instructions detailing implementation of the One
Megabyte addressing have been circulated without Official Approval
and Commodore does not assume any liability for damages resulting
from this mode of operation in the A500.
 
{---cut here ---}

  I have retyped it, exactly as it was sent, with all capitalization and
page/line formatting intact. You go figure. I don't get it either.
 
   Chris - Xenon

-- 
#define chanson Christopher_Eric_Hanson || Lord_Xenon || Kelson_Haldane 
I work, but you don't know who I work for. And they don't know I'm here.

::I'm @ chanson@nyx.cs.du.edu