[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: IIgs RAM cards, which one?
Mitchell Spector wrote:
> Well both do tricks in order to bypass the IIgs's 4 MB DMA
> limit, though neither has been absolutely flawless in doing it
> from the reports I've heard. Personally, with my own GSes, I've
> added no more than 4 MB to the expansion slot to avoid the
> chance of data corruption caused by questionable DMA tricks.
> I'm not saying don't expand beyond 4 MB, though I would say
> use caution when doing so.
Actually, neither memory cards do any DMA tricks. It is the
RamFAST revision D that does the tricks to DMA into 8MB. It
is the only card that can do this (Apple HS SCSI can't and
RamFAST revision C can't). All Sequential Systems RamFAST
cards are revision D as are late model CV Tech cards.
The revision D was designed with the 8MB CV RAM in mind. It
works with any 8MB memory card, however.
-Scott G.