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From: rcte2p@jetson.uh.edu (Paul S. Sears)
Newsgroups: comp.sys.atari.st.tech
Subject: Ram expansion questions....
Message-ID: <7589.273dd7a1@jetson.uh.edu>
Date: 12 Nov 90 04:58:40 GMT
Organization: Univ. of Houston, College of Technology
Lines: 22


  I have a question about Ram expansion.  I have a 520ST that was expanded to a
total of 1Meg with the Easie ST solderless Ram board by AERCO.  I am now
thinking of expanding my ram to 2+ megs.   My first question:

The ram board (bank1 or ST memory) has 2 banks of chip sockets, with currently
1 set filled to making up 512K which, I was wondering if I went and added more
ram to that extra bank would the board still function properly (thus giving me
a wierd config of 1.5megs total)? BTW, are these 64K-bit or are they 250k-bit
chips?

  I did inquire sometime ago about adding 1mega-bit chips to the board and I
was told that CMOS 511-000 @120ns or better were fine.  First, what exactly are
1M-bit chips and how many are required to make 1Meg ram? 8?  What are the
current prices for 1M-bit ram chips and where could I get some?  Anyone else
have this particular Ram board and any info on it?   

-- 
Paul Sears      The Univ. of Houston |"The greater an individual's power
Student of the College of Technology | over others, the greater the evil that
RCTE2P@Jetson.uh.edu      ***        | might possibly originate with him."  
RCTE2P@menudo.uh.edu     * * *       | - PROPAGANDA, from A Secret Wish (CD)