[求助] 电脑黑屏求助，万分感谢！

嗨，朋友们，你们好！我寝室一同学的电脑开机出现黑屏并显示No signal input or cable disconnected，电脑始终进入不了，有时候能够进入主界面，但等了几十秒电脑又死机了，只好重启，但重启后还是显示黑屏哟！有一次电脑出现蓝屏，出现“A problem has been detected and windows has been shut down to prevent damage to your computer.If this is the first time you`ve seen this stop error screen ,restart your computer.If this screen appears again,follow these steps:check to make sure ......If problems continue ,disable or remove any newly installed hardware or software.Disable Bios memory options such as caching or shadowing.If you need to ......”朋友们，你们知道电脑出了什么问题吗？谢谢你们哦O(∩_∩)O~因我要急着用同学电脑学习VF哟，有些急哦！万分感谢！！！