Hi Ricardo,

On Thu, May 28, 2020 at 09:24:59AM +0200, Riccardo Mottola via Dng wrote:
> I just tried adding "contrib" to my repositories and I see intel microcode
> is available, I hope it helps.
>
> Do you know how this "update" works? will it be applied also when running
> older kernels?

Typically the microcode update will be prepend to the normal init-ramdisk
image during creation of the init-ramdisk. The kernel will load this
microcode in a very early stage. See following link for details

https://wiki.debian.org/initramfs

I remind that I had several issues with some Intel atom based celeron and
certain kernel versions. There is a problem with the power saving in these
cpus which was not handled properly in the Kernel. Starting with some
kernel which used more aggresive power savings, the machine started
crashing randomly.

I think the problem is not limited to celerons it seems to persist
since a while now, more or less solved for some usecases. It
relates to the internal GPU of the processors.

See here: https://bugzilla.kernel.org/show_bug.cgi?id=109051

You're very likely required to upgrade to a much newer Kernel version. I
suggest you to use the most recent stable kernel version and build it from
source ( Not that hard, ask me for help if needed) For me the upgrade
fixed the issue.

cheers,
Andreas