Why is my Noctua NH-D15 G2 causing input lag in Tekken 8?
During high-frame-rate clashes, I noticed my inputs were lagging by a few milliseconds—enough to lose a match. The Noctua NH-D15 G2 is a beast, but the fan ramp-up between 800-1200 RPM was way too sluggish for CPU bursts, causing temps to spike from 62℃ to 88℃ in 0.2 seconds. I tried setting the Windows power plan to High Performance, but that just made the heat soak worse, which was honestly baffling. I eventually dove into the BIOS and swapped the fan curve to an aggressive step mode, pinning it to 1500 RPM the moment it hits 75℃, while undervolting the Vcore by -0.050V. Using a latency analyzer, I saw the response time drop from 18-25ms down to a rock steady 12-15ms. I actually overdid the undervolt at first and the system crashed during a special move animation, so I had to bump it back up by 0.02V to stabilize. Now temps sit between 68-74℃ and the noise is still barely audible. Benchmarks show frame times are now locked at 5.1-6.4ms, though the aggressive fan jump is slightly noticeable.
