computer monitor black screen reason

Some time ago My computer encountered a screen black screen situation, after a small deal to solve.

　　The steps/method reasons summarize the following possible types:

1. The plug loose causes the screen black screen, again unplug again to insert.

2. The video card of the computer host is broken, and it will be replaced again.

3. The computer host video card fan and power line friction caused by the two separate, to ensure that the noise reduction.

4. Computer mainframe dust more, take a brush or hair dryer blow off the dust on the product.

5. There is also a possible display resolution is not supported, to enter the Windows to adjust the resolution.

　　Note:

Be careful to adjust until the test is normal.