Question Strange freezing and crashing issues when gaming on a new PC ?

[glimmy]

A brand new PC crashes in a peculiar way, with the screens staying on but frozen. This happens hours into intensive use (gaming). It will then reboot itself after some 30 seconds of being in a frozen state. Sometimes it will fail to boot and retry up to 2-3 times before rebooting succesfully.
After rebooting and going back to gaming, it will only take about 5 minutes to crash again. Then after rebooting yet again, it will then only take about 2 minutes. It will last longer without crashing if left off for a while.

My first thought was an overheating issue, but I couldn't find anything from the monitoring software that showed anything to be overheating. I included the GPU-Z Sensor log. First crash happens around the 4 hour mark, can see temperatures drastically dropping. Second crash is at about 4:25 and third one at the very end.

I also took a look in the event viewer after the crashes, crash.evtx and reliability monitor screenshot included. Tried uninstalling nordvpn and nvcontainer only stopped working this time, all other crashes it didn't.

I've run some stress tests via OCCT as well. So far RAM tests, 3D standard gpu test and a PSU test all caused a crash on their own

Really stumped here. Can anyone help me figure out what's wrong?

GPU-Z Sensor log and Crash.evtx here - https://file.io/Ca7evSUACnje

Specs I forgot:
Motherboard - Z790 AORUS ELITE AX
CPU - i5-13600KF
PSU - RMx Series RM1000x
GPU - RTX 4090 GAMING X TRIO 24G
RAM - VENGEANCE® RGB 32GB (2x16GB) DDR5
Storage - WD Blue SN580 1TB; WD Black SN850X 2TB

 

[rgd1101]

full system spec? include brand and model of the psu

 

[nostall]

Might also want to load up MSI Afterburner (or HWInfo) and post your graphics card temps after some time in a game. IHMO sounds like the video card might not be getting enough cooling.

 

[glimmy]

full system spec? include brand and model of the psu

Ahh forgot, I've added them to the main post now.

Might also want to load up MSI Afterburner (or HWInfo) and post your graphics card temps after some time in a game. IHMO sounds like the video card might not be getting enough cooling.

I personally didn't find any of the temperatures out of place but, here are some GPUz logs from when the gaming started to when the crash happened.

https://imgur.com/a/SGu6zbj

View: https://imgur.com/a/SGu6zbj

 

[glimmy]

While running the stress tests I started suspecting it might have something to do with the RAM. I tried both ram sticks separately and they seemed to work, except for slot A2, which struggled with even booting. Will try different combinations and report back with more findings.