Fixing Huntkey Blizzard T620 Snow thermal throttling in Witcher 3
Every time I hit a dense NPC area, the CPU temp just rockets to 96℃ and the clock speed falls off a cliff. The anxiety of not knowing when the next dip would hit was real. The default fan curve on the Huntkey Blizzard T620 Snow is sluggish until 80℃, letting heat soak into the cores and killing about 12-18% of my performance. I tried cranking up the case intake, but that only dropped the ambient temp by 1℃ while the core peaks stayed insane—it was like trying to put out a house fire with a squirt bottle. I went into the BIOS and set a brutal stepped fan curve, hitting 90% speed as soon as it touches 70℃, and enabled Aggressive Cooling. HWInfo showed the peaks dropping from 96℃ to 82-86℃, and the slowdowns stopped. I did deal with some annoying resonance noise at low loads, but locking the speed to 700 RPM below 40℃ fixed it. Now it sits at 72-78℃ with a max of 1700 RPM. The input lag is gone, and it finally feels responsive.
