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How often should silicone grease be changed?

Release：Pinuo Environmental Protection Technology　Release time：2026/8/18

1. Abnormal temperature: The standby temperature of the CPU is more than 5 ℃ higher than before, or the full load temperature exceeds 85 ℃, and it has been confirmed that the fan is normal and the heat sink has no dust accumulation. If the temperature is higher than that of the new machine by more than 15 ℃, it can be basically concluded that it is a problem with silicone grease.

2. Appearance changes: After removing the radiator, it is found that the silicone grease has dried, clumped, discolored, or hardened, indicating that it has failed.
3. Performance degradation: The computer frequently experiences blue screens, lagging, sudden drops in game frame rates, or automatic device restarts. After ruling out software issues, silicone grease aging should be considered.
4. Special circumstances: Once the radiator has been removed (such as cleaning, repairing, or replacing hardware), the previously evenly applied silicone grease will be damaged and new silicone grease must be reapplied.
How to extend the lifespan of silicone grease?
To make silicone grease last longer, you can pay attention to the following points:
- Choose high-quality silicone grease: Cheap silicone grease often contains low boiling point silicone oil, which may dry out within a year.
- Keep the cooling system clean: Regularly clean the dust accumulation on the fan and cooling fins, keep the air duct of the chassis unobstructed, reduce the core temperature, and slow down the aging of silicone grease.
- Uniform application and moderate thickness: During installation, ensure that the silicone grease is evenly applied and the thickness is controlled at about 0.1-0.2mm. Excessive thickness can increase thermal resistance and reduce acceleration performance.

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