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Date:      Thu, 7 Dec 2000 09:09:27 -0400
From:      "Matt Rudderham" <matt@researcher.com>
To:        "Tobias Roth" <roth@iamexwi.unibe.ch>, "tanbin" <tanbin@empworld.com>
Cc:        <freebsd-questions@freebsd.org>
Subject:   RE: mysterious power reset
Message-ID:  <NDBBLEKOOLGIBFPGLFEKCENFCJAA.matt@researcher.com>
In-Reply-To: <20001207131427.A5191@pissarro.unibe.ch>

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Also,
I don't know if this would affect either of you, but this problem has popped
up a few times with some RealTek NICs. I had this problem, swapped the NIC
and my box has now been up over 40 days without a hitch.
- Matt

>
> I experienced the very same thing two weeks ago with (then)
> FreeBSD 4.1 BETA.
> It could not have been a powerfailure, the monitor hanging on the
> same outlet
> still had power.
>
> I suspect it is a hardware problem, maybe a bad power supply.
> Healthd showed,
> that my power supply indeed delivers very unstable values.
>
> If this does not happen again, I am happy. If it does, the first
> thing I'll
> do is buy a better power supply.
>
> Of course that doesn't help you much, but I wanted you to know
> that you are
> not the only one with this problem.
>
>
> cheers, Tobe
>
>
>
> On Thu, Dec 07, 2000 at 01:00:09PM +0800, tanbin wrote:
> > Since 3 days ago, our freeBSD box has automatically power-down-then-up 3
> > times. (This has happend only 3 times, all in the past 3 days.)
> >
> > The symptom is neither of a 'reboot' command, nor a power
> button activation,
> > but a reset button activation (or someone pressing the power
> button twice,
> > or switching off and on the power point on the wall, which are publicly
> > accessible). The last 2 times during the boot i saw "... file system not
> > cleanly unmounted. rebooting automatically".
> >
> > During all these reboots, i did not notice any power failure to
> my PC or the
> > office lighting. The freebsd box is in the same room, 20 meters
> away from
> > me.
> >
> > Is there any software/hardware fault that can trigger a
> power-reset? How do
> > I confirm the cause? If it's a disgruntled employee, then how
> do i track her
> > down?
>
>
>
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