我妹妹的电脑开机之后无法继续进入，显示器只现实这个：please check signal cable？？？？
推荐回答（2个）
情监测是否有信号
1、显卡问题，换个显卡再试
2、系统中的刷新率过高超过了显示器能承受的范围，进安全模式看能不能调低些再重启。
3、显示器故障，但比较罕见。
4我建议你去修一下主扳，有的时候可能是电脑主版的那快心片坏了
5如果刚开机的时候黑屏，那么请检查你的显卡，内存条等是否插紧，显示器接口是否插紧
如果是在进入系统的时候黑屏，请按F8进入安全模式，把显卡驱动卸载，再正常进入系统后重装驱动
如果不能进入安全模式，请重装系统。
系统自检很慢，多半是由于你的CMOS设置有问题，试着使用CMOS的安全设置看看。
也能是你的显卡支持多显示器显示。系统会选一个显示器显示，所以会有黑屏！
要知道问题听下BIOS的警报音不就知道了，希望能帮助你解决问题
BIOS警报声音信息一览表 AMI BIOS
1短 内存刷新操作失败
2短 内存ECC校验出错
3短 系统基本内存（第一个64KB)检查出错
4短 系统时钟出错
5短 中央处理器CPU出错
6短 键盘控制器出错
7短 系统实模式错误，不能切换到保护模式
8短 显示内存出错
9短 ROM BIOS的检验和出错
1长3短 系统内存出错
1长8短 显示系统（显示卡）出错
Award BIOS
1短 系统正常启动
2短 常规错误，请进入CMOS Setup修改不正确的设置]
1长1短 主板或内存出错
1长2短 显示卡出错
1长3短 键盘控制器出错
1长9短 主板EPROM或EEPROM出错
连续长声响 内存条接触不良或损坏
连续短声响 电源有问题
不停的响 电源或显示卡接触不良
Phoenix BIOS
1短 系统正常启动
3短 系统加电自检(POST)初始化失败
1短1短2短 主板出错
1短1短3短 主板CMOS电池没电或CMOS损坏
1短1短4短 ROM BIOS检验出错
1短2短1短 系统实时钟故障
1短2短2短 DMA通道初始化失败
1短2短3短 DMA通道页寄存器出错
1短3短1短 内存通道刷新出错或内存损坏
1短3短2短 基本内存出错，内存损坏或RAS设置出错
1短3短3短 基本内存出错，DIMM内存损坏
1短4短1短 基本内存某一地址出错
1短4短2短 系统基本内存奇偶校验出错
2短1短1短 系统基本内存检查出错
3 1 1 第一个DMA控制器或寄存器出错
3 1 2 二
3 1 3 主中断处理寄存器出错
3 1 4 副
3 2 4 键盘时钟有问题
3 3 4 显示卡内存出错
3 4 2 显示卡接触不良或损坏
3 4 3 未发现显示卡的ROM BIOS
4 2 1 系统实时钟出错
4 2 2 系统启动出错，CMOS设置不当或BIOS损坏
4 2 3 键盘控制器8042的Gate A20开关出错，BIOS不能切换到保护模式
4 2 4 保护模式中断错误
4 3 1 主内存错误，内存损坏或RAS设置错误
4 3 3 系统第二实时钟出错
4 3 4 系统实时钟出错
4 4 1 串行口故障
4 4 2 并行口故障
呵呵，没必要那么难吧？
我上次也是这样，吧线重接一下就OK了
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