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From: hase@netmbx.UUCP (Hartmut Semken)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: SIPPs in an STe
Message-ID: <2122@netmbx.UUCP>
Date: 23 Mar 91 07:34:40 GMT
References: <1991Mar20.210939.18026@ecst.csuchico.edu>
Organization: netmbx, Berlin, West Germany
Lines: 23

ekrimen@ecst.csuchico.edu (Ed Krimen) writes:

>Will SIPPs work in an STe?  How do SIPPs differ from SIMMs?

>If I have 2 1megx8 SIMMs already in my STe, will 2 1megx9 SIPPs work with
>them to give me a total 4meg?

SIPPs are SIMMs with pins. They use single in line sockets very much
like IC sockes.
I did desolder the pins and clean the contacts of some SIPs to make them
SIMMs again. They work fine.

9 bit SIMMs are no problem in either MacSE/SE30 or Atari STE. Tried it
out.
The 9 bit SIMMs/SIPs contain one more chip, but the inout-pin of this
chip is not connected to anything in the STE. To be sure, connect the
Data 9 inout to a 10 k pullup to 5 volts. This will make the chip read
in a 1 on every write and stop it from doing wild things.

hase
-- 
Hartmut Semken, Lupsteiner Weg 67, 1000 Berlin 37 hase@netmbx.UUCP
Hi! (Zaphod Beeblebrox)