reboot loop after power failure

[Jan Welker]

The mainboard caused the problem. I reseted the CMOS and it worked just
fine. Thanks for all your replies.

Cheers, Jan

On Nov 14, 2007 7:44 PM, Mikkel L. Ellertson <mikkel at infinity-ltd.com>
wrote:

> John wrote:
> > Jan Welker wrote:
> >> Dear List,
> >>
> >> Yesterday evening I had a power outage in my office. My workstation
> >> lost power. After the power was back I tried to start it again. The
> >> result was a reboot loop.
> >> If I switch it on I get no screen, no beep. The fans and the disks are
> >> spinning (normal start up sounds). After 5 seconds it switches off and
> >> does the same again. It is for sure a hardware problem.
> >> Any idea what component is broken (motherboard, power supply or RAM)?
> >>
> >> Thanks,
> >> Jan
> > I have seen similar behavior, and it almost always means that the power
> > supply has failed.
> >
> >
> I second this - with no POST beep at all, the CPU is not starting.
> From the sounds of things, you are getting the some power for the
> drive, but with the drive spinning up, and then back down again, you
> may not be getting the proper power to either spin it up to full
> speed, or to run the electronics. It is also possible that you have
> a fried drive as well as your other problems.
>
> If at all possible, take the system apart and test each part
> separately. I would not be surprised if there was a power surge just
> before the power went out, or as it came back on. It is possible
> that this surge managed to damage more then one part of the system.
> A power supply dieing because of a surge may spike one or more
> outputs - it is not supposed to happen, but you never know. There
> power supplies used to come with a built in surge suppressor, but
> they seem to be rare now days in any but the high-end supplies.
>
> Mikkel
> --
>
>  Do not meddle in the affairs of dragons,
> for thou art crunchy and taste good with Ketchup!
>
>
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