1Mb RAM upgrade boards with 256kx4bit chips

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Article #36866

#36866

From: Warwick Grigg
Date: Wed, 01 Mar 1989 13:03

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I would like to upgrade my 520ST (new model) to 1Mb RAM. My ST contains
a bank of 4 256kx4bit RAM chips (NEC part number D424256C-10) with space 
for 4 more. It looks as if the decoupling capacitors are already there.
Does anyone know how to do the upgrade? Is it just a case of 
putting in the new chips ? (In sockets of course). Please mail replies
and I'll summarise. Thanks for your help.

Regards,

Warwick

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Message-ID: <1785@dlvax2.datlog.co.uk>

Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcvax!ukc!stl!stc!datlog!grigw

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcvax!ukc!stl!stc!datlog!grigw
From: grigw@datlog.co.uk ( Warwick Grigg )
Newsgroups: comp.sys.atari.st
Subject: 1Mb RAM upgrade boards with 256kx4bit chips
Summary: Information please
Keywords: Upgrade
Message-ID: <1785@dlvax2.datlog.co.uk>
Date: 1 Mar 89 13:03:27 GMT
Reply-To: grigw@datlog.co.uk ( Warwick Grigg )
Distribution: comp.sys.atari.st
Organization: Data Logic Ltd, Queens House, Greenhill Way, Harrow, London.
Lines: 10