How often should I replace my thermal paste? This question often arises among PC enthusiasts and casual users alike, especially those keen on maintaining optimal performance for their systems. Considering the intricate relationship between thermal paste and the thermal efficiency of CPUs and GPUs, is there a definitive timeframe? What factors should influence the decision to reapply this crucial substance? For instance, should I base my judgment solely on the age of the paste, or are temperature fluctuations indicative of a necessary replacement? Moreover, do specific types of thermal paste degrade faster than others, and how do environmental conditions play a role in this degradation process? If my computer frequently runs demanding applications, might this necessitate more frequent replacements? Ultimately, what signs should I be vigilant for that could indicate diminished effectiveness of the thermal interface material? Is there a consensus in the community regarding best practices for optimal thermal management? These considerations warrant thorough exploration.