Re: TWGS Upgrade Availability?

[Rubywand <rubywand@swbell.net>]

Mitchell Spector writes ...
> 
> In article supertimer@aol.com (Supertimer) writes...
> 
> >Alan J. Hunt wrote:
> >
> >>Alright.  Probably doomed to failure here, but...  Is there any hope in hell
> >>of obtaining the 2B GAL chip for the TWGS?
> >
> >Why do you need the 2B GAL, Alan?  You know that for 65C816
> >chips manufactured after 1993, you don't need replacement GALs!
> >
> >Don't put them in!  They might actually make your TWGS a bit
> >slower than necessary!
> 
>     The TWGS-2B GAL was a DMA fix Applied Engineering issued for
> the board, and an absolute requirement for it to co-exist with a
> RamFAST SCSI board (without it the RamFAST will not function at
> all, and I would assume the Apple High Speed SCSI card as well).
> 
>     With Applied Engineering long since out of business and the
> GAL virtually impossible to duplicate by convential means, that
> leaves no source for replacement GALs (except perhaps finding a
> dead TWGS board to pull it from; Alltech might be of help here
> if they have any in stock). As I mentioned before, I found it
> much more affordable (and less hassle) to just purchase a used
> TransWarp GS board to replace your old one.
>

     Neat info! This probably explains the conflicting reports on
whether or not the TransWarp board is DMA compatible.

     When you say the RamFAST will not work at all without the 2B GAL,
do you mean that a Rev D RamFAST board will not work even if RamFAST
setup Options are set for TWGS with DMA set OFF?
  


Rubywand