台式机电脑开机屏幕不亮主机还在运行

1、检查主机电源是否工作

电源风扇是否转动?用手移到主机机箱背部的

开关,感觉有风吹出则电源正常,无风则是电源故障;主机电源开关开启瞬间键盘的三个

指示灯(NumLock、CapsLock、ScrollLock、ScrollLock)是否闪亮一下?显示器电源指示灯亮,无信号或显示器未连接,电源灯、硬盘、硬盘、内存卡、硬盘、显示器等硬件

如果无信号,有可能是硬件损坏的因素,比如显示器的‘ON’键:白条式显示器,亮度键:0,这个是机械硬盘的‘’,"Caps

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