Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site pur-phy.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!ihnp4!inuxc!pur-ee!CS-Mordred!Pucc-H:Physics:piner
From: piner@pur-phy.UUCP (Richard Piner)
Newsgroups: net.micro
Subject: Lobo MAX-80 problem
Message-ID: <1393@pur-phy.UUCP>
Date: Wed, 8-Aug-84 06:13:55 EDT
Article-I.D.: pur-phy.1393
Posted: Wed Aug  8 06:13:55 1984
Date-Received: Thu, 9-Aug-84 03:17:21 EDT
Organization: Purdue University Physics Dept.
Lines: 29

I am posting this to net.micro since the MAX-80 runs under both
CP/M and LDOS. The MAX-80 has a heat problem with the power supply.
The power supply module runs hot. I have had one fail after 10 months
of operation. It was at the boss' house and so I can't say how
hot the room was, but it was not air conditioned and it is summer.
The one I have here in the lab has not had any problems and it is
over a year and a half old. It has been on for the whole year and
a half too. So, if you have a MAX-80, you could have a problem with
the power supply. Keep it cool. Don't run your computer in a room
where the tempature is 90 degrees or higher and don't block the
air path for convection cooling. This warning applies to most other
computers as well. Finally, I attached small heat sinks to the
backs of my MAXes and that did lower the tempature of the power
supply by about 5-10 degrees. This might be a good idea to try.
  To say a few words in defense of Lobo. The power supply module
is the only thing they didn't design themselves. I expect they
regret that now. Also, their repair was quick and free. The MAX
has a one year warranty. When they fix a machine, they install any
hardware improvements that have come up since you got the machine,
and they burn it in after all the work is done. They do this for
free under warranty. So they stand behind their product. Other than
this one problem, the machines have functioned perfectly for
quite awhile now. So I would still buy from them. But keep them
cool.
					Rich Piner
					Purdue Physics Dept.
P.S.
  Lobo is now shipping CP/M 3.0 with the MAX, and offering updates
from 2.2 for current owners.