Why did my Cooler Master MasterLiquid G360 RGB water pump stop during Metro Awakening exploration?

I was deep in Metro Awakening when my CPU hit 95°C per HWiNFO, and the pump stopped. I tried increasing page file size, but FPS dropped to 90. I opened GamePP Fan Curve Configuration, set the pump to 1500 RPM, and calibrated PWM to 75%. After fine-tuning to 70% to kill noise, the system stabilized. GamePP Hardware Sensors confirmed the pump recovered to 1500 RPM, and CPU temp settled at 72-75°C. This saved my session from thermal throttling.