Win8 computer boot black screen reason and solve tutorial

First, at the computer startup time can see the screen and Windows words, but after entering the system black screen
Computer system settings resolution is not correct, common in notebook reloading system After setting the unsupported resolution incorrectly, it is recommended to external monitor, adjust to the lowest resolution and then enter the system.
Second, the computer has no display after booting
1. Check if the connection between the monitor and the computer is tightly installed.
2. Remove the computer memory, use the pen eraser to wipe the gold finger and put it back (the gold finger oxidation causes the memory bar to be in poor contact, which will cause the computer to turn on the black screen).
3. Replace the memory module, graphics card, monitor, and cable to diagnose the fault.