My PC started shutting down a few days ago when I use my GPU for raytraced render in Marmoset and Blender. Few seconds after the render is done, the whole pc shuts down and all the settings in AMD adrenaline edition software are set to default. The problem it's not constant, it's random, sometimes 20 renders will be rendered without problems and sometimes it will shutdown 5-6 times in a row. The GPU and CPU are not overheating, the temps are normal 65-70°C max. I did all of the latest updates on the BIOS, motherboard, GPU drivers and Windows updates and it didn't help. I have no problem with any games, no overheating, no crushes, no shutting down, just with rendering (for now).
I have my pc for 4 years, and the GPU for 2 years and I never had a problem similar to this.
CPU: AMD Ryzen 9 3900x 12-core
MBO: X570 AORUS Elite
GPU: AMD 6900 XT Toxic Air Cooled
RAM: (4x 16gb) DDR4 Kingston
PSU: Be Quiet- Straight Power 11- 1000W Platinum
COOLER: Kraken x52 Liquid Cooler
