Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!cs.utexas.edu!rice!sun-spots-request
From: dudek@ksr.com (Glen Dudek)
Newsgroups: comp.sys.sun
Subject: Re: Buying/Selling USED Sun boxes (with peripherals) ??
Keywords: Hardware
Message-ID: <5936@brazos.Rice.edu>
Date: 20 Mar 90 16:23:02 GMT
Sender: root@rice.edu
Organization: Sun-Spots
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Approved: Sun-Spots@rice.edu
X-Refs:  Original: v9n82, Replies: v9n88
X-Sun-Spots-Digest: Volume 9, Issue 89, message 5

In article <5872@brazos.Rice.edu> convex!datri@uunet.uu.net (Anthony A. Datri) writes:
>X-Sun-Spots-Digest: Volume 9, Issue 82, message 16
>
>You really, Really, REALLY don't want 3/75's.  They have quite a history
>of dying.  I've heard it attributed to improperly cleaned/manufactured
>backplanes.  The idea is that the residues corrode things.

I have been using Sun-3/75's for years, and the only 3/75-specific problem
I've seen is that a power supply connector can fail (due to a flaw in the
power supply design I believe) such that the machine is inoperable until
the power supply is replaced.  I am fairly certain the replacement power
supplies do not have the same flaw.  It is easy to tell when your Sun-3/75
has died for this reason: one of the molex connectors on the power supply
becomes browned (toasted) fairly badly.

Other than that, I have found the 3/75's to be at least as reliable as any
other Sun model we have (3/50's, 3/140's, 3/110's, 3/60's, 4/60's
4/280's).

	Glen Dudek
	Not speaking for Kendall Square Research
	dudek@ksr.com