Re: Help me resurrect my GS!

[supertimer@aol.com (Supertimer)]

mystix@direct.ca wrote:

>OK with my return to CSA2 I have a reason to try to get my GS going again.
>Several years ago my 40MB AE Vulcan was behaving erratically. To the point,
>data was getting corrupted, and files were being mushed together. I figured
>that the drive was toast.
>
>Replacing the IDE drive wasn't much of an option since I would want a larger
>drive anyways. And since I already had a RamFAST Rev. D I figured why not
>swap in a SCSI drive instead.
>
>Slot 4: Applied Engineering 7MHz TransWarp GS w/32k cache 
>Slot 6: Sequential Systems RamFAST SCSI Rev. D w/1MB cache

I'm pretty sure these two are in conflict, thus causing your problem.
The old 65C816 didn't work well with the RamFAST at high
speeds and required a replacement GAL to trap the problem
instructions.  The new 14Mhz 65C816, the model that Western
Design Center contracted Sanyo to redesign, is immune to such
problems at high speeds.  Thus, you can either find an old set
of replacement GALs OR you can simply replace the 65C816
with a 14Mhz part.  The latter option can yield higher speeds
and is easier to find (since Western Design Center is still in
business.

Another thing to consider, even without the RamFAST problem,
the old 65C816 was really being pushed even at 7Mhz in the
TWGS and their performance tended to degrade over time.
Some of the original 7Mhz TWGS no longer work, requiring a
new CPU.