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From: Henry_Burdett_Messenger@cup.portal.com
Newsgroups: comp.sys.atari.st
Subject: Re: memory upgrade
Message-ID: <16363@cup.portal.com>
Date: 29 Mar 89 00:29:04 GMT
References: <mailrus!caen.engin.umich.edu!bdenh@tut.cis.ohio-state.edu> <19890327135004.5.ESC@DJINN.SCRC.Symbolics.COM>
Organization: The Portal System (TM)
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Re: "The ST can only address 2 banks"

I have it on good authority that this is not the case. The ST can address 8
banks of memory, and therefore one can migrate to 4 Mb using 256 Kbit DRAMs.
Unfortunately, none of the upgrade boards available take advantage of this.
There are a few people who will customize your ST to use more than two rows
of memory (1 row = n x 16 bits; 520 is 256k x 1 row, 1040 is 256k x 2 rows)

Rumor has it that Dave Beckenmeyer's ST's are hacked like this. Dave, care to
confirm or deny?

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henry_burdett_messenger@cup.portal.com
				- hbm