OT: Weird Hardware Problem

Polytropon freebsd at edvax.de
Tue May 19 16:24:09 UTC 2020

On Tue, 19 May 2020 11:01:46 -0500, Tim Daneliuk wrote:
> On 5/19/20 10:14 AM, Michael Schuster wrote:
> > Any chance of capturing a serial console? 
> Difficult.  I'm not sure it would tell me much, though.  When this happens,
> the machine just does an instantaneous hard reset as if I had hit a button
> to do so.

I had a machine with exactly that problem (which is
comparable to what you're describing).

This instant reboot could not be intendedly triggered,
but it often happened when playing media files. As I
assume, it was a faulty graphics card. Certain games
would halt the system (and the last audio samples would
loop in the sound card, making a buzzing sound), and
it could also instant reboot when using mencoder to
convert a media file from one format to another (for
example, AVI to MP4). When run in headless mode (with
the graphics card removed), the system did not reboot,
crash, or halt anymore.

Maybe you can do an "exchange test" with the components
of the system? One at a time - replace power supply,
RAM, main processor, graphics card, hard disk / SSD).

Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...

More information about the freebsd-questions mailing list