Xref: utzoo comp.sys.att:2281 unix-pc.general:236
Path: utzoo!utgpu!water!watmath!clyde!cbosgd!mandrill!hal!ncoast!mikes
From: mikes@ncoast.UUCP (Mike Squires)
Newsgroups: comp.sys.att,unix-pc.general
Subject: Re: 3b1 death
Summary: Sounds like a PS transient
Keywords: heat, power
Message-ID: <7143@ncoast.UUCP>
Date: 29 Jan 88 05:36:25 GMT
References: <6126@sol.ARPA>
Reply-To: mikes@ncoast.UUCP (Mike Squires)
Organization: Cleveland Public Access UN*X, Cleveland, Oh
Lines: 16

In article <6126@sol.ARPA> brown@cs.rochester.edu (Chris Brown) writes:
>I lost power at home, and my Global surge protector kept power off to
>my 3b1 (2MB, 67M disk).  5 minutes after repowering, machine dies:
>temp was 69 or less.  Machine is 5 months old, ran in hotter temps no problem.
.....stuff deleted......
>I don't see how power loss could hurt. My technician here thinks the cooling

(I worked for a while as an analog (high end audio) technician)
Sounds like the PS emitted a spike when the line voltage went down.  This
would make something go marginal.  First choice for testing would be the PS
(scope 5V line with covers on); check total current with covers off (may be
too high due to bad part); try to cool hot parts with additional heat-
sinking with covers on.

Mike Squires  Allegheny College Meadville, PA 16335 814 724 3360
If it doesn't use output transformers I'm just not interested........