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: <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!