My PC just shuts down when rendering high-poly models in the UE5 demo, can priority settings fix this?

This motherboard is basically fighting for its life trying to run UE5. It's just a demo project, yet it manages to trigger a full system reboot—absolutely ridiculous. The VRM voltage was swinging violently between 1.1V and 1.3V, and the moment a high-poly Nanite model hit the render pipeline, the current peak tripped the overcurrent protection. It felt like the PC was playing a prank on me. I tried Windows 'Power Saver' mode, but that just gutted the performance, turning a 10-minute render into a 30-minute slog. I ended up using a frequency control tool to hard-lock the CPU at 3.6GHz and disabled all Boost features. Looking at the power analyzer, the current fluctuations settled into a flat 40-60A range, and the reboots stopped. I did hit a snag where the system hung because the voltage was too low, so I manually bumped it to 1.15V. VRM temps are sitting at 82-88℃ with fans at 2200 RPM. I exported the crash logs and everything is now stable with fans at 1400-1600RPM.