Re: TWGS DMA and RamFast SCSI--HELP!!

[supertimer@aol.com (Supertimer)]

Liam Busey <liam1@ix.netcom.com> wrote:

>Sagochangi wrote:
>
>> Nathan Mates' old accelerator FAQ lists the -2B GAL as being a 
>> necessary DMA fix, and the RamFast manual itself (p.40) says of the 
>> -2B GAL, "The RamFAST/SCSI will not function in your computer until 
>> you get this replacement part".  And the TWGS works fine without the 
>> SCSI card in the system, so I can only assume that I do need the chip.
>
>I wouldn't put much seock in Nathan's  Accelerator FAQ. It's way out of
>date. As for the 2B GAL requirement, I believe Tony Diaz is correct in
>his assessment that it's unneccessary. I've seen a a couple of posts
>from people Ramfast Transwarp difficulties even with the 2B GAL
>installed.

Strike what I said earlier about needing the 2B GAL.

I checked once again with the RamFAST manual.  Apparently,
the section which says this is required is under "IIgs with a
TWGS and a RamFAST/SCSI RevC."  It seems the RamFAST
manual suggests this GAL is not needed for RamFAST RevD.

Sagochangi says he's got a RamFAST RevD.

Perhaps a ROM upgrade from v1.4 to v1.8 and a new
65C816 plus faster oscillator should be the first course of
action.  The new bug free 65C816 with extra speed to
boot might cure this problem without needing to track down
a rare GAL.  Just a thought.