How do you know that a capacitor in the computer power supply has exploded?

1, the explosion of the motherboard capacitor will cause the computer to automatically restart for no reason, and it needs to be restarted several times before it can be turned on, and suddenly there is a blue screen failure; Seriously damage CPU or south bridge chip.

2. The function of capacitive filtering can be converted into approximately linear DC pulsating DC. High temperature is the main reason for capacitor Explosicum. When the computer is used for a long time or the power consumption of CPU is high, the capacitor of CPU power supply is prone to high temperature.

The internal electrolyte capacitor boils and the pressure increases. When the pressure exceeds the pressure of the electrolytic aluminum shell, it finally exceeds the explosion limit, and Explosicum occurs at the top of the capacitor. Therefore, electrolytic capacitors are no longer used in most CPU power supply parts of the motherboard.

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Capacitance is different from capacitance. Capacitance is a basic physical quantity, with symbol c and unit f (farad).

General formula of parallel plate capacitor c = q/u Special formula: electric field intensity between plates e = u/d, capacitance measurement formula c = s/4kd.

With the rapid development of electronic information technology, the upgrading speed of digital electronic products is getting faster and faster. The production and sales of consumer electronic products, mainly flat-panel TVs (LCD monitors and PDP), notebook computers, digital cameras and other products have continued to grow, which has driven the growth of the capacitor industry.