打开电源自动打开机器。
最近，一台计算机开启了打开自己电源的电源，有时它是无法解释的。{failure analysis and processing} the causes of this failure may be the following: (1) first check whether the computer starts the function of timing in ldquo settings, set it to BIOS, Enabled, so that the computer will start automatically at the set time.(2) check whether the computer opens the function of the call automatically in the BIOS setting, when the AC power is plugged into the computer, the computer will start automatically.(3) if we confirm that BIOS has shut down the function of timed start and call automatic start, the computer will start automatically, and it can be concluded that this is caused by hardware failure.The reasons for the failure of self starting hardware may be as follows: = +5VSB, low voltage, so that motherboard总是低电平，这样不仅会使本身，但也不能关闭。电源本身的抗干扰能力差，从交流电源的干扰，使主电路工作。然后我们要换一个电源，主板的PS-ON信号质量差的。在激励的瞬间，信号从低电平向高电平变化。主电源就绪，当PS-ON信号仍然很低，这使得ATX电源主回路误导的，导致自启动。