Re: know anything about an OctoRAM GS board?

[phs172m@vaxc.cc.monash.edu.au (Stephen Harker)]

In article <1SEP199411051567@jetson.uh.edu>, st3b1@jetson.uh.edu (Fretz, David) writes:
> In article <CvG0CE.KAA@actrix.gen.nz>, dempson@actrix.gen.nz (David Empson) writes...
>>In article <p22xu2Z.tdon@delphi.com>, Tom O'Neill  <tdon@delphi.com> wrote:
>>> There was a review in GS+ in late '91 I believe and Diz or someone there
>>> uses an OctoRam (or used it then).
>>> DMA compatible with up to 8 Meg on the single board
>> 
>>The OctoRAM is only DMA compatible if you have no more than 4 SIMMs
>>installed, i.e. 4 MB using 1 MB SIMMs, or 1 MB using 256 KB SIMMs.
> 
> Umm how come my setup of Transwarp GS and Apple HS SCSI card card works well
> with my Octoram with 8Megs?  The Apple card does have the DMA option?on!

	I am pretty sure that I can recall one of the postings from
Apple people when the HS SCSI card was released did mention that one
of the engineers had an OctoRAM and made sure that the card worked
with 8 MB.   From memory I think it is smart enough not to do DMA into
the upper 4 MB.  Unfortunately I don't have my old printouts with me.

-- 
Stephen Harker			was phs172m@vaxc.cc.monash.edu.au
ex Monash University		now sjh@phadfa.ph.adfa.edu.au
now ADFA (Canberra)		Baloney baffles brains: Eric Frank Russell