How to fix single-core overheating on Thermalright PA120 V3?
Everything was smooth for the first thirty minutes, then the game suddenly turned into a slideshow. This kind of performance cliff is a nightmare during combat. I checked my logs and saw a single core hitting 98℃, triggering a hardware-level throttle that tanked my clock speeds from 4.5 GHz down to 2.8 GHz. I tried forcing the fans to 100% in software, but while the overall temp dropped by 3℃, the delta between cores stayed above 12℃—software fixes are useless for physical contact issues. I ripped the cooler off and found the pre-applied paste was bunched up at the edges with tiny air bubbles in the center. I swapped to high-conductivity liquid metal and used a cross-pattern tightening sequence to ensure perfectly even pressure. In AIDA64 stress tests, the peak temp plummeted from 98℃ to 78-82℃, and the core delta narrowed to 4-6℃. I actually over-tightened the screws on my second attempt and slightly warped the PCB, but after backing them off a half-turn, it stabilized. Fan noise is now around 35 dB. Verified the fix with real-time temp curves.
