Of course, neither hardware failure nor software problem is isolated in a sense. Try to solve it according to the following ideas. I believe that the black screen will be properly solved soon.
Black screen injury
When a "black screen" suddenly appears after the computer is turned on, please pay attention to whether there is an alarm sound in the PC speaker in the computer. If the PC horn sounds an alarm, then we can initially determine the hardware components that may have problems according to the length of the sound. For example, when the computer is turned on, the alarm sound of the PC speaker is one long and four short. According to this prompt, it is easy to judge that the problem lies in the graphics card. If so, readers can open the case and see if their graphics card is firmly inserted. If you feel a little loose, please pull out the video card, insert it again, insert it tightly, and then fix it with screws.
If the problem of insertion mode is eliminated and the card slot is firm, you can pull out the graphics card and try another slot on the motherboard. If the user's graphics card does not belong to PCI but is a new AGP slot board, and there is only one AGP slot on the computer motherboard, you can try another AGP slot on the motherboard to eliminate the physical failure of the graphics card. If the graphics card is inserted tightly and the physical fault is eliminated, then there is another possibility that the "golden finger" of the graphics card itself has a problem in normal contact. If this is the case, you can pull out the display card again, and then find a clean rubber to rub it back and forth on the "golden finger", because most of the poor contact problems of this "golden finger" are caused by some dirty things on it.
If the alarm sound of the PC speaker is not long but short when the computer is turned on, but a short and urgent call, and there is a black screen, then it can be roughly judged that there is a contact problem in your computer memory according to the phenomenon. The solution to poor contact is basically the same as the graphics card, that is, pull them out and plug them in again. When inserting, be sure to insert it to the end and fasten the clips on both sides of the memory stick.
SDRAM slots on some motherboards are troublesome, because most of the slots on these motherboards are very tight. If the user encounters this situation, he must not use force. They can press the bottom of SDRAM slot on the motherboard with their fingers, and then press the memory with their thumbs. Hearing a slight noise proves that the memory has bottomed out. Finally, they can fix their memories with clips.
There are also some black screens, and the computer will not call the police. At this time, the simplest thing is to analyze the specific problems according to the mathematical "exclusion method". First, check whether there is any problem with the power terminal board, remove the relevant supporting parts of the computer and replace them with some other equipment that can be used to check whether the power terminal board works normally. If there is nothing wrong with the power terminal board, then check whether the connection between the computer power supply and the motherboard is normal according to the normal procedure, that is to say, check whether the motherboard power supply is normal.
If the socket is not connected by mistake, check whether the power supply is burnt out. If the power supply burns out, the power supply fan will also stop running. In some early computer cases, the power supply was often insufficient. If this problem is suspected, please unplug all power cords from the hard disk, CD-ROM drive and floppy drive, and then restart the computer. After the power consumption rate is greatly reduced, see if this situation is solved. If the problem still cannot be solved, please rule out that the motherboard BIOS is accidentally damaged by viruses such as CIH, and whether the motherboard is in poor contact or the welding head is short-circuited.
In addition to the above, with the continuous improvement of CPU frequency speed, power supply plays an increasingly important role in the whole PC power supply system. Some people describe the central processing unit as the heart of a computer. Maybe for a long time, we were too concerned about whether the heart is healthy and strong, but neglected the chassis power supply that can provide power and energy for the heart. However, due to the lack of power supply, it may also cause the computer to have a black screen. The symptom is that you can hear the chassis power fan start normally after starting, but you can't hear the "drip" sound of system error, but the machine doesn't work, there is no self-test process, and a black screen is displayed. If all boards and memories are plugged and unplugged again after cutting off the power supply, make sure that all boards or components are not loose, which is mostly caused by insufficient power supply.
I strongly believe that for your love of computer health, don't ignore the chassis and power supply when buying a computer. Buying a power supply with a rated power of more than 250 watts is a kind of care for your machine. There is one more thing to note here. At present, many power supplies with rated power of 250W on the market simply can't meet the requirements, which leads to another suggestion. Buy power supply and try to take care of famous brands. At this time, the brand is a powerful guarantee for the safety of your machine. If there are many peripherals installed on your machine, such as dual disks, dual CPUs, dual optical drives, SCSI cards or anything else, you'd better find a more powerful (300 ~ 400 watts) or server power supply. As for users of P4, Thunderbird and GeForce3, they must use more than 300 watts of power, otherwise things more troublesome than black screens will emerge one after another.
Soft and bad black screen
Of course, the phenomenon of black screen is mostly caused by hard injuries on the PC, but it is not absolutely so. Soft injuries may sometimes be easier to deceive users. In the process of using our computer, some black screen phenomena may also be soft failures after entering WINDOWS 98/WINME/WIN2000 or even WINXP system (but I haven't found the black screen failure of WINDOWS XP yet, but since there is no conclusion, it can be assumed that it also exists).
If users find that the machine is assembled, there are always inexplicable problems in the process of installing operating system and other software, or even a sudden black screen crash. Here, it is necessary for us to eliminate the cause of the virus, because there are many cases in which the virus causes the black screen in the system operation, but the only solution is antivirus, and there is nothing to say. On the contrary, we should pay more attention to errors or black screens in program operation. The most obvious thing here is the program failure caused by hardware driver problems. This kind of problem frequently appears on some third-party boards such as 3D accelerated graphics card, PCI sound card, network card, SCSI card and RAID card, and the most obvious manifestation of this kind of problem is that applications and game software frequently crash during operation, resulting in black screen.
For example, when playing Dungeon Guardian 2, S3' s diamond viper 770/GEFORCE 2PRO accelerated graphics card is often rejected by the game (the graphics card is not recognized), and even the game will give up hardware acceleration and use software special effects instead. This paper analyzes the reasons for this problem, mainly because the power of standard 3D acceleration chips or higher-end, newer non-mainstream 3D acceleration chips is ignored when writing the game source program, so the hardware support of the game itself is not satisfactory, which also affects the performance of the product. Another example is PCI sound card, PCI network card and so on. Because of the conflict between driver and system application, the machine suddenly appears black screen or restarts. Readers can solve this problem by installing updated drivers.