Newsgroups: comp.sys.apple2
Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!mvk
From: mvk@aix01.aix.rpi.edu (Michael V. Kent)
Subject: Re: OctoRAM and DMA
Message-ID: <7vpgrza@rpi.edu>
Nntp-Posting-Host: aix01srv.aix.rpi.edu
Organization: Rensselaer Polytechnic Institute, Troy NY
References: <m0jU6xy-00003oC@jartel.info.com> <47549@ut-emx.uucp>
Date: 20 Apr 91 19:11:21 GMT
Lines: 17

So, back to my original question.  If I plug 8 256K SIMMs into my OctoRAM with
my Apple High Speed (DMA) SCSI card, what happens?  Will I get 1 Meg of DMA and
1 Meg of non-DMA; or just 1 Meg of DMA; or an unusable system, or damaged hard-
ware?

I've been told that with an Apple SCSI card, only the first 4 SIMMs will
function in any way.  With a RAMFast SCSI, I've been told, the first 4 SIMMs
will be DMA, and the second 4 SIMMs will function normally.  Is this true?

What's the scoop?


-- 
Michael Kent                                  mvk@itsgw.rpi.edu
McDonnell Douglas                             Rensselaer Polytechnic Institute
St. Louis, Missouri                           Troy, New York
                               Apple II Forever!
