Fixing Cooler Master B240 thermal drift in Elden Ring?
I can finally face the final boss without my PC melting, though this AIO is getting old. I managed to squeeze every bit of performance out of it, which was a huge relief. The B240 was showing a 10-15℃ thermal drift under load, with cores idling in the 88-94℃ range, causing my FPS to swing wildly between 60 and 45. I tried forcing the pump to full speed via software, but the high-pitched whine was so piercing I couldn't hear the game—completely unacceptable. I ended up stripping the block, applying high-conductivity thermal paste, and switching to an aggressive fan curve based on CPU package temp in the BIOS. HWiNFO showed the load temps plummet from 92℃ to 76-80℃, and the FPS fluctuations totally stopped. The fans were a bit too loud at idle initially, but dropping the low-load RPM to 600 RPM made it perfect. Now it stays between 65-72℃. Benchmarks confirm the cooling mode switch worked, though I suspect the pump is nearing the end of its life.
