Fixing frequency fluctuations on PCCOOLER RT500 Digital in Nioh?
When fighting mobs of enemies, the game looked smooth, but every few seconds there was this slight 'twitch' in the movement that felt incredibly unsettling. Monitoring showed the PCCOOLER RT500 Digital had a fan response time that was way too slow; the CPU temp would spike to 88-92℃ the moment the load hit, triggering a brief frequency drop and a 15-25ms instruction delay. I tried disabling all background processes in Windows, but while CPU usage dropped, the temperature spikes remained—a naive approach that didn't touch the root cause. I went into the BIOS, shortened the fan start delay from 0.7s to 0.1s, and forced the fans to 100% at 70℃. In RTSS, the frame time jitter dropped from 12-35ms to 14-18ms, and the game felt significantly more fluid. I did deal with some resonance noise at low loads after shortening the delay, but dropping the minimum RPM by 100 solved it. CPU temps are now stable at 72-78℃ with fans at 1300 RPM. Testing confirms the thermal response is finally synced, keeping temps at 72-78℃.
