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The hidden secret of computer cooling! Have you avoided these holes?


Hi everyone, I'm Xiao Jiang. The car assembly wave has been going on for N years now, and it has not cooled down at all: from some large accessories, such as mass-produced processors and video cards, to small parts, such as heatsinks and power cords, they have all become things. that everyone should satisfy their own performance and appearance, orientation needs. However, with increase in number of domestic overclockers, heat dissipation requirements are also very high. The CPU will generate a large amount of heat during operation. If this heat is not removed in time, it will probably shorten life of the CPU. . So, today Xiaojiang will tell you about some misunderstandings related to computer heatsinks.

It's all fans, why doesn't yours break? The fans all look same, but size is different, but why do some fans run for a long time, while others fail within two days? This is due to design difference of fan itself. Selecting Parameters Before selecting a CPU cooler, we need to know TDP of processor and actual operating temperature, and then combine these two parameters to determine what class of CPU cooler is needed. Perhaps TDP of two processors is similar, but due to difference in packaging process (for example, poor thermal conductivity of filler between metal top cover and chip core), operating temperature will also be different, so choice of fan should not be based only on TDP. Silicone grease for heat dissipation is a key link As for silicone grease, it is mainly related to heat dissipation of CPU. At present, more common silicone greases are mainly white and gray, however, with advent of gray silicone greases, number of white silicone greases is gradually decreasing.

Actually, silicone grease acts as a heat transfer medium, so applying silicone grease between processor and heatsink is necessary to reduce gap between processor and cooling base and fit more tightly. , thereby improving heat dissipation performance. But many users often mistakenly believe that heat dissipation performance depends on type of silicone lubricant and amount of application. Powerful radiator or not, silicone grease plays only an auxiliary role. This auxiliary function is to use silicone grease to fill gap, not to connect CPU and cooling base. Silicone grease cannot be used as a heat dissipation object, it just helps heatsink to promote heat dissipation.

The higher fan power, better heat dissipation effect. The basic principle of an air-cooled heatsink is that heatsink absorbs heat generated by CPU during its operation. Theoretically, greater power of fan, stronger its wind energy and better cooling effect. But power is only one of many factors that affect heat dissipation effect. The heat dissipation effect of a heatsink is also closely related to its material, heatsink design, buckle and polishing smoothness, not just power. Therefore, which heatsink to choose should be determined depending on heat generated by your processor. You should not emphasize high power one-sidedly, but should match power of computer itself. This can increase load on computer and ultimately lead to a reduction in life of processor fan.

Finally, seemingly simple case cooling fan actually hides a lot of detail. Do you have any stories about case cooling fan when you installed it in past? You can leave a message in comment area below, thanks.