What is the test method of the monitor black screen crash failure?

Most of the system crashes appear as black screen (that is, there is no display on the monitor screen), this kind of fault and display, display card is closely related, at the same time the system motherboard, CPU, CACHE, memory, power and other parts of the fault can also lead to black screen. The general inspection method of the system black screen crash is as follows:

1. Eliminate fake black screen: Check whether the power plug of the monitor is plugged in, whether the power switch is turned on, the monitor and the host card data connection is good, whether the connection shook his head is loose, see whether it is because of these factors caused by the black screen. In addition, you should move your mouse or click the keyboard to see if the screen is back to normal. Because the black screen may also be due to a set of energy-saving mode (can be viewed and modified in the BIOS settings) the fake panic occurs.

2. In the black screen while the rest of the system is working properly, such as: the start of the soft/hard drive self-test is passed, keyboard keys whether there is reaction. Can pass jiao to use a good monitor to connect on the host test, if only the monitor black screen while the other part is normal, then only the monitor has the problem, this is still a kind of false deadlock phenomenon.

3. The black screen occurs during system post, see step fourth.

4. Black screen occurs during display driver installation or display mode Setup, it is obvious that the display system does not support the mode, you should choose a more basic display mode. such as: Windows set after the display mode black screen or flower screen, you should run the Windows directory under DOS SETUP.EXE program to select the standard VGA display mode.

5. Check the display card and the motherboard I/O slot contact is normal, reliable, if necessary, can change an I/O slot insert display card try.

6. Change a good performance of the same model display card inserted into the host reboot, if the black screen deadlock is the problem of the display card.

7. Change a good performance of other models of the display card inserted into the host reboot, if the black screen deadlock is the display card is incompatible with the host, you can consider replacing the display card or motherboard.

8. Check whether the system's core components are set up, such as CPU frequency, read and write time of memory, cache refresh mode, motherboard bus speed, etc., which may cause black screen panic.

9. Check the internal parts of the host connection is correct, there are some special wiring errors will cause black screen panic. The system crashed.