Should I adjust the pump settings for Cooler Master B240 in Space Marine 2?
When fighting thousands of Tyranids, my CPU temp was bouncing crazily between 75°C and 92°C, and the frame rate looked like a heart monitor. The 'smart' pump mode on the Cooler Master B240 has way too much latency when hitting sudden loads, so the coolant flow just couldn't keep up with the heat spikes. I first tried cranking the fans to max via software, but while the noise was deafening, the temps kept jumping—it was a total waste of time and left me feeling pretty anxious. I eventually went into the BIOS, switched the pump header from PWM to DC mode, and forced it to a constant 100% speed, while setting the radiator fans to exhaust. In side-by-side tests, the core temp swing dropped from 17°C to a manageable 4-6°C, and the stuttering frequency fell by about 80%. I did notice a high-pitched whine from the pump initially, but that stopped once I tweaked the radiator mounting angle. CPU temps are now stable at 68-75°C. Stress tests show the clocks aren't jumping anymore, and the input lag is gone; it just feels responsive.
