Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!uunet!seismo!columbia!rutgers!mcnc!ecsvax!cjl
From: cjl@ecsvax.UUCP (Charles Lord)
Newsgroups: comp.sys.ibm.pc
Subject: HELP! Compaq Reboots while on UPS!
Message-ID: <3744@ecsvax.UUCP>
Date: Sun, 23-Aug-87 22:45:18 EDT
Article-I.D.: ecsvax.3744
Posted: Sun Aug 23 22:45:18 1987
Date-Received: Tue, 25-Aug-87 00:38:09 EDT
Organization: UNC Educational Computing Service
Lines: 26
Keywords: Compaq,Deskpro,UPS,Glitch



I have a curious problem that I wonder if anyone else has seen.
I have an otherwise functioning Compaq Deskpro that will reboot
sporatically (sp?) every few hours on its own if left on a 
Tripp-Lite UPS.  It has done it so far with two separate UPS units
that work great with IBM, Zenith, No-Name Taiwan, Wells-American,
and other computers in the building, but the Deskpro will not run
without rebooting every few hours while plugged into the UPS.

Mind you, the power did not go off during that time as the UPS
alarm never sounded!

The computer runs 8-12 hours a day with no problem if plugged
directly into the wall (as long as the utilities co-operate),
but is unreliable when just plugged into the UPS.  Go figure..

Note to those unfamiliar with the Tripp-Lite: It is NOT a 
problem with the converted voltage/waveform/etc as the UPS
normally passes the line AC to the device and cuts over to
its square wave output on power failure.  That is not the problem.

Thanks for any feedback!

Charles Lord
cjl@ecsvax.UUCP     ...!decvax!mcnc!ecsvax!cjl