Laptop Boot black screen what to do

First, the notebook computer boot black screen reason

Notebook black screen for a number of reasons, common black screen reasons are:

1, display data line contact bad;

2, graphics card contact bad or;

3. Bad CPU contact and overheating;

4, bad contact with the memory bar;

5. Poor performance of power supply;

6, the machine infection CIH virus, the BIOS is destructive to refresh;

7, Microsoft black screen, please play patch;

Second, the notebook computer black screen how to repair

1, turn on the screen black screen, only the indicator light, the host does not have any reflection. The fan is not felt in the back of the host. The voltage of each circuit is not measured. Remove the power to adjust the tube is bad, in exchange for normal.

2, the pilot sound alarm, should be a memory failure. Unplug the memory, clear the gold finger, insert normal.

3, the power-on power supply and CPU fan are normal, but the screen without any reflection, and no self-test sound. This machine uses SLOT1 structure, the CPU is easy to contact bad, reload normal.

4, Post normal, but the screen is not lit. According to the main introduction of the machine, unplug the rear display signal line. Unplug a look, a pin is the top bend.

5, the power-on screen is not bright. The machine does not self test. Use the hands on the motherboard to start up normally. It turns out that the start switch on the panel is broken.

6, the power-on does not self-test, check the power supply is normal. Using the minimum system method, when the optical drive is unplugged, the machine can start normally. Again install the fault reappearance. A problem with the optical drive caused the machine to fail to start. This example should attract the attention of peers.