Computer black screen check ideas to help you solve the black screen failure

A lot of people will have a black screen when using a computer. Some computer rookies are helpless when they encounter such a situation. For those who often use computers, black screen faults can analyze the cause and solve it. Computer black screen check ideas:

The first case 1. Check that the interface and power cable of the chassis power supply are intact. If the interface and power cord are broken or broken, they should be replaced in time. Check the motherboard power cord socket. If it is not damaged, pull out the socket and insert it. Generally, it can be solved because there is no electricity due to poor contact of the main board. 3. Check the switch on the chassis power supply to see if it is properly connected to the motherboard. Check the jumper on the motherboard, find the jumper that controls the power supply, try to shorten the jumper pin. If the motherboard can run normally, this indicates that the jumper has a problem. Mainly due to poor contact between the jumper pin and the jumper cap. Shorting the jumper pin allows the two to be fully coupled. The second case is displayed but still black. Check all the cards, graphics cards, sound cards, etc., whether the CPU and memory modules are installed in place, whether the contact is good, the more stupid way is to pull them out and then re-insert them. Check that all interface cards are in good contact with the interface. The advantage of dealing with black screens in this way is that one by one, it is better to kill one thousand, and one must not miss one is to check the problem. 2. If the problem is too serious, you have to use the most cruel one to unplug all the original parts. Disconnect all secondary power cords, including devices such as IDE floppy drives. All that is needed is the most basic initial startup, self-checking screen memory data. Motherboard, CPU, RAM, graphics card, etc. If the self-test passes. Add other parts item by item, add one item and check it once. If the self-test is not passed, the problem is found, and the problem of incorrect installation or incompatibility is solved. General inspection steps: 1. Open the chassis and check the BIOS reset pin first. 2. Just insert a memory, try a few more times, usually a memory problem. Memory problems do not necessarily self-test alarms, it is best to borrow a good memory test, or insert the memory into a friend's machine to judge. 3. When the floppy disk drive and the hard disk indicator are off, the motherboard may be broken. 4. The memory self-test passes, and the floppy disk and hard disk indicator lights up, and it does not start. Restart the machine, press the F8 key to see if you can enter the safe mode, you can do it, the system can be restored. If you can't use DOS floppy disk to start, see if you can enter the hard disk, you can enter, it depends on whether you have done GHOST clone backup, and some machines are ready to go out of the factory, you can not format the hard disk reinstallation system.