Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!van-bc!rsoft!mindlink!a429
From: a429@mindlink.UUCP (Alykhan Virani)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: 256K simms on an Amiga?
Message-ID: <4411@mindlink.UUCP>
Date: 11 Jan 91 03:55:54 GMT
Organization: MIND LINK! - British Columbia, Canada
Lines: 30

...<Some Deleted>...
> davem@hp-lsd.COS.HP.COM writes:
> 
> Msg-ID: <19620010@hp-lsd.COS.HP.COM>
> Posted: 8 Jan 91 15:00:03 GMT
> 
> Org.  : HP Logic Systems Division - ColoSpgs, CO
> Person: Dave K. Martin
> 
> The 8-up board from Microbotics will use 256k simms but only if you have the
> early 'A' model board.  The later 'B' model (revision?) board accepts only
> dip
> memory chips.  The other thing to look for is the type of simm modules that
> you have.  By far, the most common are the 256x9 simm modules where there
> are 8 data chips and 1 chip used for parity checking.  This is the type used
> in IBMs and their thousands of clones.  This type cannot be used by the 8-up
> board (or any other Amiga expansion device I believe) as the Amiga does not
> use the parity checking.  The 8-up boards use 256x8 or 1mx8 simm boards like
> are used in the Macs.  Microbotics also makes a small board where you can
> plug in individual dip chips in then the whole board plugs into the simm
> sockets on their 8-up board.
> 
> 
> 
> Hope this helps.....

I have been using IBM 256K X 9 simms on my 8 Up card for about 1 1/2 years
without any problems.  I am not too sure what type of board I
have.
Alykhan.