Troubleshooting Help:

What is your parts list?

CPU: AMD Ryzen 9 7950x

Cooler: Corsair H115i RGB PRO XT

Motherboard: ASRock X670E Taichi

RAM: G.Skill Trident Z5 DDR5-6000 SL C32 DC - 64GB

GPU: XFX SPEEDSTER MERC 310 Radeon RX 7900 XTX

NVMe: Samsung 980 PRO 1 TB

NVMe: WD_BLACK SN750 1TB

NVMe: Corsair MP400 1TB

SSD: SanDisk Ultra 3D 2 TB

SSD: Samsung SATA 870 QVO 4TB

SSD: Samsung SATA 860 QVO 1TB

SSD: Samsung SATA 860 QVO 1TB

HDD: Seagate Barracuda 2TB

PSU: be quiet! Straight Power 11 Platinum 1200W

Case: Corsair 7000D AIRFLOW

OS: Arch Linux

Describe your problem. List any error messages and symptoms. Be descriptive.

My PC shuts down shortly after the Unreal Engine logo when starting Hell Let Loose. I already found out that this doesn't happen when using a fresh install of the game. It only happens after the second time of starting it. I didn't change any settings between the first and the second launch of the game.

journalctl doesn't show any logs related to my issue.

The PC just turns off like someone had pulled it's power plug. After that, it won't turn on for some time. Unplugging the power cord for ~2 minutes gets it to turn back on again. Unplugging for ~1 minute doesn't fix the issue.

Every other game is fine, running CPU and GPU at 100% for extended periods of time is fine. This only happens with Hell Let Loose and only after the second time of launching the game.

My motherboard has two buttons for power and reset, normally those are lit when the PC is turned off. When I trigger my issue, those LED's aren't lit.

My temperatures are totally fine, there isn't much dust built up inside the PC. The whole system is a little over a year old.

List anything you've done in attempt to diagnose or fix the problem.

System is up to date, including BIOS, Kernel and all packages. I stress tested CPU and GPU separately and at the same time, my issue didn't appear.

Alright, that's all the details I have until now. Does anyone know what could be the cause for this? Thank you very much in advance.

EDIT: Thank you everyone, I've decided to replace my PSU. I've generally been quite unsatisfied with be quiet! (their fans also kinda suck). I Will report back if that fixes my issue.

EDIT 2: Replacing my PSU fixed my issue. Never buying from be quiet! again.