Computer black screen cannot start the solution!

First, the computer upgrade after the black screen, power indicator light is long

Phenomenon: After the computer upgrades the memory and the hard disk, the power indicator is on, but the computer does not start. After replacing a memory, the fault still cannot be resolved.

Workaround: When this type of failure we first check the memory bar installation is strong, and then check the memory bar and motherboard compatibility issues. The specific steps are as follows:

1, first, put the memory plug again, the boot test has not been resolved.

2, if there is a fault, then clean the motherboard memory slot, with the rubber memory of the gold finger, after the end of the computer to try, if the boot screen at this point, it indicates that the memory bar and memory slot contact caused by bad.

3, if the memory and video cards are installed firmly, then use alternating check the memory bar, and then try to boot, if the failure disappears. This indicates that there is a problem with the original memory, replace a new one can be.

Second, press the restart button after the display black screen

Phenomenon: The computer optical drive in the reading disk, due to the poor quality of the CD, the crash occurred, press the restart key, the monitor has been black screen.

Workaround

Depending on the fault, it may be related to the reset hot start key cable. In addition, it may be the display signal line loose, CPU overheating and other problems caused. First check the reset hot start key and its connection line problems, and then check the CPU overheating and other accessories problems, the method is as follows:

1, first check the chassis restart key, found that the restart key has no elasticity, press down cannot automatically bounce back.

2. Remove the connection from the restart key, and then short connect the power switch on the motherboard.

3, the computer does not start normally. Remove the restart button, found that the restart key spring has broken, replace the restart key spring, the key to return to normal, power-on test, problem solving.

Third, after the display black screen, power lights flashing and out, can not start

According to the fault analysis, may be computer startup received a shutdown signal or motherboard does not have the boot conditions caused, such as motherboard cup power supply problem, the motherboard short circuit. To check the power button and the connection line is not a problem, and then check the ATX power supply and motherboard problems, the specific operation is as follows:

1, first check the host power button, found that the key elasticity difference.

2, then open the Host box, the computer's power-on key line and restart the key line off, and then to short-connect the motherboard of the switch, the computer can start normally, indicating that the motherboard and ATX power supply of the computer is not a problem.

3, check the computer switch spring, found that the spring is useless, after the press, sometimes after a while can slowly play up, so the motherboard is turned off immediately after the power switch, to open the computer test, fault problem solving.

Computer black screen cannot start the solution!