电脑显示器检测不到信号，键盘鼠标全不亮。。。

显示全部楼层 · 2013-7-21 16:34:13

下面的是显示器确定没有问题!CPU风扇运行着~而显示器没有显示的前提下!与黑屏幕的原因的硬件有~电源内存显卡主板CPU!其他的包扩有`连接显示器的数据线VGA接口歪针`主板电容爆浆`内存损坏`金手指被氧化`插槽有灰尘`脏物显卡损坏`金手指被氧化`插槽有灰尘`脏物显卡插槽损坏`显卡显存烧坏!随机性发生的黑屏的原因很难确定!主要的原因有很多说不清~包括软件问题`硬件问题`散热问题`主板问题`环境问题`软件方面是不兼容和中毒`硬件问题就是不兼容和主板芯片接触不良`散人问题就是温度过高CPU`环境问题就是受潮或者有干扰详细的检查方法:检查前的准备`清理显卡`内存`插槽灰尘`检查CPU插槽是否有灰尘或者脏物!用橡皮察下内存和显卡的金手指!替换内存的插...

千问 · 2013-7-21 16:34:13

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千问 · 2013-7-21 16:34:13

检查电源，测量输出电压是否正常...

千问 · 2013-7-21 16:34:13

有可能是主板问题...

千问 · 2013-7-21 16:34:13

坏了...