Display a black screen. bios does not alarm.

Users questions: Today, how to touch a bit less host. And then shut down. Re-boot did not respond. Host. Power supply fan is no problem. cpu fan is no problem (cpu fan is connected the motherboard) memory, hard drive. Unknown host again .. I installed it. Not yet. . Still black screen. How to do Ya. U get me a plate inserted Behind. Light .. right. There is a keyboard light problem. I boot. Light with the mouse, keyboard lights. And then the keyboard lights go out. Mouse, and so continued on. After the black screen display 5.4.3.2.1. . ! Hell I regard the host re-installed again. . Be careful be very careful. I just do not accidentally touched Host it. To be like this. .
Experts answer: into the system if the time should be a software problem try a black screen safe mode, and if normal, adjust the display resolution and refresh rate of about can often eliminate the fault. If just getting the time to self-check did not even dark or too bright, that the basic hardware, it should be Barrier, the investigation can be reduced to the range of display and graphics, find a friend in order for a trouble-free accessories try.
  • This information provided by the users.Thanks!