Thirteen, the voltage fluctuation is too large, causing the current on the board to be large or small, sometimes damaging the hardware. Therefore, it is very important to choose a power supply that can prevent overvoltage or add a voltage regulator.

14, printers, recorders, scanners and other peripherals have been broken, but plug-and-play technology makes the system detect these devices at startup, leading to a crash. 《 ? ynn？ 45 ˋ ? ヨヨ meters? 》

15. If the host computer is running normally, there is also the sound of hard disk running, but the display is not bright, it may be that the display is broken, the signal line of the display may be in poor contact or broken, or the power supply of the display may not be plugged in.

Sixteen, the motherboard capacitance. Sometimes we have no problem with other hardware, but we can't find any problems, but we can crash for a while, but this is infinite. You may guess that it is a system problem, but it is not. It's just that the motherboard capacitor is broken.