Why is my Noctua NH-D15 G2 causing frame spikes in Dota 2?
It's honestly a joke that I'm using the best cooler on the market and still getting stutters in team fights. The Noctua NH-D15 G2's default curve is way too conservative; it takes about 5 seconds for the fans to ramp from 400 to 1200 RPM, which lets the CPU spike to 85℃ and throttle instantly. I tried the motherboard's 'Aggressive' mode, but that just turned my room into a wind tunnel without fixing the drops—total waste of life. I ended up manually defining the curve: 50℃ for the baseline and 65℃ for full blast, while disabling all power-saving C-states. In RivaTuner, the frame time variance shrank from a messy 12-35ms down to a tight 7-11ms. I did have a slight resonance hum when the fans kicked in too fast, but moving the fan clips solved it. CPU temps now hover between 62-68℃ with fans steady at 1100-1200 RPM. I exported the logs to verify, and the frequency line is finally flat.
