Path: utzoo!mnetor!tmsoft!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!uunet!brunix!rca
From: rca@cs.brown.edu (Ronald C.F. Antony)
Newsgroups: comp.sys.next
Subject: Re: memory, LUTs, and a strangeness
Keywords: 040 memory color lut troubleshooting
Message-ID: <59856@brunix.UUCP>
Date: 18 Dec 90 21:32:49 GMT
References: <1031@nada.cs.utexas.edu>
Sender: news@brunix.UUCP
Reply-To: rca@cs.brown.edu (Ronald C.F. Antony)
Organization: Brown University Department of Computer Science
Lines: 29

In article <1031@nada.cs.utexas.edu> garnett@cs.utexas.edu (John William Garnett) writes:
>1) will third-party RAM chips which work in the 030 NeXT cube also work in
>the 040 NeXT cube?  In particular, if a particular brand of SIMMS will fit
>in the 030 cube, will they also fit in the 040 cube?

Yes. If they conform to the specs. (100ns or faster, only SIMMs of the same 
kind in the same bank, no mixture of parity and non-parity chips)

>3) Today, I had a cube refuse to boot from the optical (this is an optical +
>40 MB swapdisk system).  The cube would ask for the optical, the optical disk
>image (icon) would spin for a few revs and then everything would stop.  I used
>the ROM Monitor to turn on extended diagnostics and found that all tests
>were passed.  The freezeup was occuring just after the boot from optical
>process began.  The last message was the one saying that 7.xxx Megs of
>RAM were available (or somewhere near here).  This same machine booted
>fine the night before.  I thought, "Oh great... the optical drive is shot".
>Fortunately, replacing the /odmach executable on the optical caused the
>problem to go away.

Did you happen to get an operating system 1.0 with the cube? Then you probably 
double clicked once on the odmach executable. I remember that in the time 
before 1.0a was out there were quite a few such postings. As far as I
know change the permissions as root with chmod a-wx 

Ronald
------------------------------------------------------------------------------
"The reasonable man adapts himself to the world; the unreasonable one persists
in trying to adapt the world to himself. Therefore all progress depends on the
unreasonable man."   G.B. Shaw   |  rca@cs.brown.edu or antony@browncog.bitnet