Re: AE GS-RAM

[dempson@actrix.gen.nz (David Empson)]

In article <34r546$rt8@strauss.udel.edu>,
Steve Cavanaugh <cav@strauss.udel.edu> wrote:
> I just got a new RAMFAST SCSI card, and reading the docs
> before I plugged it in, I saw it will not work with the
> Revision A GSRAM card from AE. Of course, that is what
> I have in my GS. Is there any way to upgrade the RAM card
> to a revision B (or C, etc.), or is there a software patch 
> available to help with this.

Nope.  It is a hardware problem.  The original GSRAM card doesn't
handle DMA properly.  I doubt you could modify the card to work
properly without rerouting all of the logic circuitry on the card and
tacking on an extra board.

You should be able to avoid the problem by disabling DMA on the
RAMFAST, but that will slow down I/O considerably.

Buy a new RAM card.
-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P.O. Box 27-103, Wellington, New Zealand