Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!texsun!convex!woods
From: woods@convex.com (Darrin Woods)
Newsgroups: comp.sys.mac.hardware
Subject: Re: Help: IIcx powers itself down
Message-ID: <110870@convex.convex.com>
Date: 12 Dec 90 19:56:20 GMT
References: <1192@dg.dg.com> <1990Dec8.010224.14756@cunixf.cc.columbia.edu>
Sender: usenet@convex.com
Organization: Convex Computer Corporation; Richardson, TX
Lines: 34

In article <1990Dec8.010224.14756@cunixf.cc.columbia.edu> beecher@cunixf.cc.columbia.edu (Ben Beecher) writes:
>In article <1192@dg.dg.com> colella@emav51.webo.dg.com (Wayne Colella) writes:
>>Hi, folks.  I hope someone out there can help me.  I have a IIcx that
>>likes to power itself down.  It happens a lot more frequently when I
>>have an air conditioner and/or copy machine running, but lately it's
>>happening even when no other power hogs are running.
>>	Wayne Colella	colella@emav51.webo.dg.com
>
>I suspect your SCSI devices might be the problem.  What kind of hard
>disk is plugged into your SCSI port?  Are you using a nice, fat cable?

I had this problem once.  Mine was an original cx.  After having the 13"
RGB plugged into the back of the mac for about 2-3 months, my mac started
doing the same things that you are describing - shutting itself off.
Problem - power supply was burning itself out.  Apple replace these
'problem' power supplies, but the problem still remains - the internal
power supply really can't handle anything more than a 12" mono monitor
over a long period of time.  To this day - even with a ci, I plug the 
13" into the wall socket directly.  i.e. this may or may not be your
problem - it sounds like your power supply is going bad regardless
of the reason.

BTW - for those of you who didn't catch it..  The socket on the back is
not a pass through - it draws its current from the mac itself just like
the hard drive and floppy and moboard

Blacksheep
Senior Systems Engineer

--
Darrin R. Woods						woods@convex.com

This is a guest account. Convex knows nothing about what I'm saying, or
even that I'm saying it.