386/ix 2.20 and 12 megs RAM

[alan denney]

In article <1990Oct09.160925.1433 at nstar.uucp> larry at nstar.uucp (Larry Snyder) writes:
>does the 2.20 release of 386/ix fully support
>motherboards with 12 megs of ram (can the OS
>use all 12 megs)??  Someone told me that 386/ix
>will only use 8 megs for the OS, and the other
>4 megs could be used by ramdisks - but not by
>the OS..

That doesn't make much sense and would be a serious limitation, since
machines on their supported list can accomodate up to 64MB.

I can see problems going over 16MB on ISA bus machines, but I don't
see why 12MB would be a problem.  Does anybody know how they handle
DMA in ISA bus machines with > 16 MB?  (e.g. what they do in lieu
of AT&T's DMAABLEBUF parm).

--
Alan Denney # Informix # aland at informix.com # {pyramid|uunet}!infmx!aland
 "That money talks I'll not deny.  
  I heard it once.  It said, 'goodbye'."      - Ogden Nash