PC randomly freezes for sec then restarts

I have this pretty annoying issue since 2021. My pc just freezes for a short while then restarts itself. It happens randomly whatever I do browsing internet or playing games.

I tried various things clean installing Windows, default bios settings, various tests but none trigger the issue. I'm kinda running out of things to try. Sometimes it runs fine for whole day or even month but other time it can restart like once per hour.

I spotted WHEA errors in Event Viewer appearing most of the time after restart: 2x Cache Hierarchy Error and 1x Bus/Interconnect Error.

My PC specs:
CPU: AMD Ryzen 5 1600x
Motherboard: Asrock X370 Pro4 bios version P5.80
RAM: G.Skill Ripjaws DDR4 2x8GB
GPU: Gigabyte GTX 1070Ti 8GB
PSU: SilentiumPC Supremo M2 Gold 550W
Windows 10 64bit 22H2

I'd try updating bios but on newer version it says it's not recommended for my cpu. Is it safe to try? It helped once before when I couldn't update Windows. Any tips welcome :). At least I wish to know what exactly causes it.

Thanks for the reply. Here are the screenshot from ZenTimings:

https://i.imgur.com/HbGCETv.png

https://i.imgur.com/Q0ktYk7.png

Hi @Kaelos

Short story,
- I don't see any problem, your settings seems good, I don't know why it random freeze then restarts.
- - Hence I recommend based on experience you try 2 things.
NO.1 Loadline Level 3 or Loneline level 2 for both CPU and SOC. Increase stability sacrifice maximum power saving.
NO.2 upgrade bios to 7.20, specifically agesa 1.2.0.7 very good stability even for 1600x zen1.


Long story,
- You have around / nearly 0.95v SOC, for 2666MT/s @1333Mhz, should be REALLY GOOD...I don't know why it freeze then restart. This usually happens to me when SOC voltage low. What is low you ask,
2933 MT/s = 1466MHz soc 1.0625v will freeze then restart for me. Must 1.1v then OK. Just happen last 2 weeks, because I was experimenting.
3333 MT/s = 1666Mhz soc 1.1 will freeze then restart for me. Must 1.15v then OK.
Corsair CMK32GX4M2B3000C15 hynix 25nm afr

but
3600 MT/s = 1800Mhz soc 1.1 OK because ram is Galax HOF samsung b-die 21nm


Finally the silicon will degrade over time, CPU, ram, etc etc will degrade very slowly, hence after every 6 months to 1 year on average need a bit more voltage here and there.

i.e. my corsair could run as little as 1.32v very fast tight tuning timing get 75ns latency versus XMP no tuning 85ns, only need 1.32v 6 years ago... over time it needed 1.35v, then 1.37v, then 1.39v this year.

and the SOC used to be as little as 1.025v, then 1.05v, then 1.075v now 1.1v over 6 years.


***************
See my old post a snapshot of a old history (doesn't mean it's correct, because old bios default voltages was wrong).https://forum.asrock.com/forum_posts.asp?TID=11580&KW=soc&PID=63463&title=soc1-1v3200mhzuefi5-5-calculator1-51x370taichi#63463

Thanks. I will try updating bios then. I was worried to do it because new version says 'Not recommended for Summit Ridge' which is mine cpu but I already have issues so whatever.

When I got pc I turned on XMP profile with 3200 Mhz but was getting bluescreens so switched to 2666 Mhz as seen in here: https://i.imgur.com/5O6Ubuz.png and it worked fine. Yeah I don't know much about overclocking.

Thanks for the update and thanks CX5 for the assist

Enjoy your system