Non Recoverable, SEL:CPU 1 machine check detected.

Jonathan jonathan at schwarzelan.de
Mon Mar 12 15:21:34 CDT 2012


Hi,

have you by any chance disabled the C1E Processor option in the BIOS of 
the R815s?

That's what I was told to do by support quite a while back,
and that actually solved the issue. I think.

Best
-Jonathan

On 03/12/2012 04:41 PM, G.Bakalarski at icm.edu.pl wrote:
> Dear All
>
> the following error randomly appears on LCDs of our servers
> during reboot:
>
> Non Recoverable, SEL:CPU 1 machine check detected.
>
> We noted at least 10 such events.
> The server works then more or less correctly, but I dont feel
> comfortable with this (orange blinking LCD). This does not happen every reboot,
> nor periodically . Just after next reboot it appeared.
>
> There are some variants of this message - mainly CPU numer changes.
> Within error log it says that a sensor caused non  recovarable
> assertion .....
>
> When I clear event log during boot (CTRL-E), then make hardware test
> - no errors are detected ... And all look fine - until next Nth reboot
> (N from 1 to 10)
>
> It happened on at least 5 new R815 server (BIOS 1.5.2)  ...
> We are running Debian Linux on our servers ..
>
> Any hints ???
>
>
> GB
>
>
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