How to fix DeepCool AK500 ARGB thermal spikes in Metro?

The moment global ray tracing kicks in, my CPU temps shot from 55°C to 91°C in just 8 seconds, which is absolutely insane. This thermal jump forced my clock speeds to bounce wildly between 3.8GHz and 4.6GHz, leaving me totally confused. The default fan curve on the DeepCool AK500 ARGB is way too sluggish below 70°C, letting heat build up at the base instead of pushing it through the fins. I tried switching to 'Ultimate Performance' mode in Windows, but that was a joke—I gained maybe 4 FPS on average, but the stutters actually happened more often. I eventually dove into the BIOS, moved the fan trigger threshold down to 55°C, and locked the speed to 100% once it hits 80°C. Checking HWInfo, the core temps dropped from 88-94°C down to a much healthier 68-75°C, and my frame times stabilized from a messy 18-35ms to a rock-steady 11-15ms. It was a bit noisy at first because the fans kept ramping up and down, but adding a 5°C hysteresis interval finally shut that up. Now the CPU sits comfortably between 66-72°C. The frequency curve is finally smooth, and the game feels fluid.
Category:Software Usage Last updated:February 15, 2026 10:22 AM