How to fix thermal throttling on DeepCool AK620 ARGB?
When pulling off high-speed combos, my CPU temps would suddenly rocket from 62°C to 91°C, causing the clock speed to tank from 5.1 GHz down to 3.4 GHz. That sudden drop makes the controls feel sluggish and unresponsive. The default fan curve on the DeepCool AK620 ARGB is way too conservative, barely hitting 900 RPM until the temp crosses the 80°C threshold. I initially tried switching the Windows power plan to High Performance, but that just accelerated the heating and hit the thermal wall even faster—a total waste of time. I eventually dove into the BIOS to customize the PWM curve, cranking the speed to 1700 RPM at 75°C and slashing the fan step-up time to 0.1 seconds. In AIDA64 stress tests, peak core temps dropped from 93°C to a stable 77-83°C, and the throttling completely vanished. To be honest, the fans sounded like a jet engine at first, but once I dialed the sub-60°C speed down to 700 RPM, it hit the sweet spot. With CPU load around 75%, the heat is evenly distributed and frame times are rock steady at 5.1-6.4ms.
