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Date:      Tue, 4 Sep 2018 09:34:17 -0400 (EDT)
From:      Daniel Feenberg <feenberg@nber.org>
To:        Valeri Galtsev <galtsev@kicp.uchicago.edu>
Cc:        Chris Gordon <freebsd@theory14.net>, C Gray <frankfenderbender@council124.org>, FreeBSD <freebsd-questions@freebsd.org>
Subject:   Re: APC UPS BackUPS Pro (BX1500M)
Message-ID:  <alpine.LRH.2.21.1809040931270.2490@sas1.nber.org>
In-Reply-To: <59593.108.68.162.197.1536028420.squirrel@cosmo.uchicago.edu>
References:  <SN1PR20MB2109533F42733E6EDDAA9616800C0@SN1PR20MB2109.namprd20.prod.outlook.com> <9B877978-297C-499C-86CE-99B68B570245@council124.org> <92A53B5A-BEC2-4A8C-828F-0AD180E30BD0@theory14.net> <59593.108.68.162.197.1536028420.squirrel@cosmo.uchicago.edu>

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On Mon, 3 Sep 2018, Valeri Galtsev wrote:

>
> To solve this last trouble I configure since forever in BIOS power ON
> after AC power is returned. Usually if UPS has drained battery, after
> power returns, it powers itself ON, provides power to outputs and starts
> charging battery. We had this situation once, outage longer that UPS's on

What happens if power returns during the shutdown sequence? The power 
never goes off, therefore never turns on, and the computer remains off. Is 
there a solution other than remote control?

Daniel Feenberg
NBER



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