Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!decwrl!sgi!jmb@patton.sgi.com
From: jmb@patton.sgi.com (Jim Barton)
Newsgroups: comp.sys.sgi
Subject: Re: RAM
Summary: Yes and No
Message-ID: <37817@sgi.SGI.COM>
Date: 13 Jul 89 01:26:18 GMT
References: <8907111747.aa25894@SMOKE.BRL.MIL>
Sender: daemon@sgi.SGI.COM
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 14

In article <8907111747.aa25894@SMOKE.BRL.MIL>, frobinso@cirm.northrop.com (Fletcher Robinson) writes:
> Does anyone know if CPU main memory(RAM) in a 4D70GT is dual-ported ?
> i.e. is it accessible from the VMEBUS ?

The answer is yes and no.  Only the lower 8 megabytes of CPU memory are
addressable from the VMEBus.  For a description, see the 'system' file
in /usr/sysgen.

Better yet, buy a Power Series upgrade, and address everything in the 
world.

-- Jim Barton
Silicon Graphics Computer Systems    "UNIX: Live Free Or Die!"
jmb@sgi.sgi.com, sgi!jmb@decwrl.dec.com, ...{decwrl,sun}!sgi!jmb