Re: Apple II accelerator card.

[Peter Hinchliffe <hinchlif@numbat>]

On Mon, 14 Aug 1995, David Empson wrote:

> > Hmm, I have the piggy-backed CVTech Ram card (called the GS Memory Board
> > in the documentation).  Page 1 of the documentation says it is fully
> > DMA compatible under all circumstances.
> 
> Since they also made the RamFast, they might have been glossing over
> its possible incompatibility with DMA on an Apple HS SCSI card.
> 
> Does anyone have a CVTech "GS Memory Board" and an Apple High-Speed
> SCSI card with DMA enabled?

Yes, I do (well - did, until VERY recently when I had the opportunity to 
exchange it for a smaller alternative). As I understood it, only the 
first 4 megs on the board itself were DMA compatible. Any memory on a 
piggybacked board was not. I had 3 megs on the CV Tech board, piggybacked 
with a 1 meg Apple board. I had DMA enabled on my Apple HS SCSI card 
and never had a moment's problem.   

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][ Peter Hinchliffe ][   Perth, Western Australia     ][  AppleWorks 5  ][
][ WApple II, Inc.  ][ SUPPORTING THE APPLE II IN WA  ][  Hoh Hoh Hoh!  ][
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