Arch Linux

Soyman

Member

Registered: 2017-06-23

Posts: 27

How to troubleshoot sudden reboots

My computer occasionally reboots spontaneously. No messages are written to the journal before it happens.

My powersupply is rated for 1000W which is supposed to be plenty for a 4090 and a 7950X.
I do notice fairly loud capacitor whine on the motherboard which seems correlated with dynamic CPU frequency adjustment (It goes away with the powersaving CPU governor) but I doubt that it's related.

I'm just not shure where to start troubleshooting this without buying replacement parts and swapping them out. That is a bit more expensive than I would like.

Any tips?

Soyman

Member

Registered: 2017-06-23

Posts: 27

Re: How to troubleshoot sudden reboots

This has started to occur daily, often many times per day. I don't think it's a hardware issue as it never happened for months and the hardware configuration hasn't changed since then. The only hardware related thing I can think of is the increased indoor temperature because of summer.

I only know about journalctl but it seems to stop abruptly with no messages related to the issue. Are there any other logs that I can look at or configure?

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 13,607

Re: How to troubleshoot sudden reboots

Is the powergrid you're using stable ?

Often logs contain small hints of trouble before the trouble happens. Please post a full dmesg & journalctl (both ran with root rights) of a recent boot.

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Try clean chroot manager by graysky

gladykov

Member

Registered: 2022-12-10

Posts: 14

Re: How to troubleshoot sudden reboots

Strange you exclude hardware problem. Hardware can brake over time, especially with faulty component. Like dying capacitors ?

When does restarts happen? During load? Will restart happen on power saving profile as well?

If you find a clever workshop, they can fix your part without replacing part. It is still possible in 2023.

gladykov

Member

Registered: 2022-12-10

Posts: 14

Re: How to troubleshoot sudden reboots

Also, why not try to do the same as you always do, using live ISO with other system - should exclude software problem if it also happens.

seth

Member

Registered: 2012-09-03

Posts: 63,331

Re: How to troubleshoot sudden reboots

It doesn't even have to break, at least w/ ryzen that's fairly common.
https://wiki.archlinux.org/title/Ryzen#Random_reboots

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