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A new type of passive heat sink is proposed to address the current demand for silent heat dissipation in high-power CPUs. The temperature, start-up performance, and thermal resistance of the heat sink under different heating powers were studied through numerical simulation and experimental verification. The simulation results show that under 120 W heating conditions, the temperature distribution of the radiator is uniform, with small fluctuations. The maximum temperature is only 64.00 °C, the startup time is about 900s, and the average contact thermal resistance is between 0.01~0.2 °C/W. The experimental results show that under 120 W heating conditions, the maximum temperature of the heat sink is only 68.28 °C, the startup time is about 900s, and the average contact thermal resistance is only 0. 11 °C/W, meeting the normal operation requirements of the computer CPU at this power. [ABSTRACT FROM AUTHOR]

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