Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!think.com!samsung!munnari.oz.au!metro!macuni!ipc05!s8922967
From: s8922967@ipc05.mqcs.mq.oz.au (Murray John GILBERT)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: A500 Internal 1Meg
Message-ID: <932@macuni.mqcc.mq.oz>
Date: 23 May 91 01:59:53 GMT
References: <1991May22.181607.22657@crash.cts.com>
Sender: news@macuni.mqcc.mq.oz
Organization: Macquarie University, School of Mathematics, Physics, Computing and Electronics
Lines: 23

adding an extra 4 memory chips to those empty sockets sounds good. I've 
considered doing it and also wondered as you seem to have about whether
we would then have 1megchip + 512K slowfast or 512K chip + 1meg slowfast
or just 512K of each.

I have another question to add:
I heard about six months to a year ago that these four 256kx4 chips on the
rev 6a motherboard a500 could be replaced by four 1Mx4 chips and the agnn
Agnus 8372a (which I have) be swapped for a 8372b which the 3000 has?
Once the appropriate jumpers are change then there would be 2MB of chip
memory. I am wondering: will the 6a 500 take the 8372b, I thought that its
pinout configuration was a bit different to make 2MB possible (same silicon
inside the package though as the a), are the places where the 256kx4s are
compatible with the 1Mx4 chips. And lastly, by analogy with Jose's idea of
using the other four places could I have 4Meg on the motherboard if I put
1Mx4s in all the 8 chip places ( even though only 2MB could be chip at most )

Also who in Oz, in Sydney, Northern Beaches preferably knows about the 2MB
chip mod, Hard Disk Cafe maybe?

Thanx,
	Murray