Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!garnett
From: garnett@cs.utexas.edu (John William Garnett)
Newsgroups: comp.sys.next
Subject: Re: Dust & OD (formerly: Dissatisfaction w/ NeXT ...)
Message-ID: <1059@tokio.cs.utexas.edu>
Date: 26 Jan 91 19:16:29 GMT
References: <791@mara.cognet.ucla.edu> <1991Jan25.133302.4796@wam.umd.edu> <1597@van-bc.wimsey.bc.ca>
Distribution: na
Organization: University of Texas at Austin
Lines: 42

In article <1597@van-bc.wimsey.bc.ca> jchin@van-bc.wimsey.bc.ca (Joseph Chin) writes:
>I have one of the earlier Cubes (pioneering Cubes?) with the fan sucking
>air (and DUST) through the optical drive. After more than a year of faithful
>service, the OD failed due to accumulation of dust. Upon informing NeXT of
>the problem, the helpful people at NeXT promptly sent a replacement drive.
>(at their cost ...)
>Anyways, for those with older Cubes who are looking for a solution to
>their OD dust problems, the light at the end of the tunnel is here! Along
>with the 68040 upgrade kit also comes a dust filter which attaches to the
>back of the OD. There is also instruction on re-mounting the fan so that
>it sucks air through the back of the Cube and blows air out through the
>front of the Cube (and the OD). The filter will prevent any dust from
>getting into the OD. It is a very simple procedure and it works!
>
>Warning: DO NOT reverse-connect the power connector of the fan!!



Should owners of the older NeXTs take the above statement to mean that
the answer in "hardware.419" from NextAnswers may be safely ignored?

--- cut here ---
hardware fan reversing cooling vents

Q: Why can't I reverse the fan of my old cube so it blows the air like the 
new ones to keep the cube a bit cleaner?

A: It will overheat the cube.  Older cubes have bottom vents only in the 
front of the cube; the vents in the rear are critical to cooling if the fan 
is blowing air down rather than pulling it up.

QA419
---- cut here ---




-- 
John Garnett
                              University of Texas at Austin
garnett@cs.utexas.edu         Department of Computer Science
                              Austin, Texas