What should I do if the computer always turns on the black screen? Solution of desktop black screen after computer is turned on

It is understood that more than 50% of users have encountered the situation that the computer is turned on with a black screen, which will not only affect our work, but also affect our mood. So, what if the computer keeps turning on the black screen? Here's a detailed introduction: what should I do if the computer is always turned on with a black screen? What is the solution to the desktop black screen after the computer is turned on? I hope I can give you some help and inspiration!

What if the computer keeps turning on the black screen?

Step 1: The computer turns on the black screen. First, take the computer apart, then clean up the dust on the motherboard, and then press it to see if the computer is running normally.

Step 2: Check whether the external wiring of the computer is normal. You can plug in the wiring of various countries and see if the computer is running normally.

Step 3: If the screen is still black, open the main chassis to see if there are any extra items in the chassis, or if the motherboard is deformed and short-circuited. Finally, whether there is burnt smell under the smell, whether there are burnt chips on the motherboard, etc.

Step 4: If the fault still exists, unplug the reset line on the motherboard, connect the switch and indicator light, and then short-circuit the switch with a screwdriver to see if it can be turned on.

Step 5: If the computer still can't be turned on, unplug the data cables of the hard disk and floppy drive with the minimum system method, and then see if it can be turned on. If it can be turned on, it means that the fault lies in the equipment. Connect the equipment to the computer one by one until it is detected.

Step 6: If the fault still exists, it may be a problem with memory, graphics card or CPU. Therefore, plug-in method and exchange method should be used to check whether the memory, graphics card and CPU are normal one by one. If any equipment is damaged, we should replace it with a new one.

Step 7: If the memory, graphics card and CPU are normal, it is necessary to discharge the BIOS, and then put the motherboard outside the chassis in an isolated way, and connect the memory, graphics card and CPU for testing. If the screen is normal, put the board into the chassis and test it until the fault is found.

Step 8: If the computer is turned on with a black screen, but there is an alarm sound, it means that the computer has entered the BIOS system, performed a POST self-check, and detected a device failure, so the speaker gives an alarm sound. Therefore, when dealing with it, we can eliminate the faulty equipment according to the meaning of BIOS alarm sound and let the computer return to normal.

Summary of the article: This paper introduces the knowledge about how to do when the computer is turned on and how to solve the black screen on the desktop after the computer is turned on. In fact, there are many reasons for the computer to turn on the black screen. During the test, you can check the faults one by one according to the article, treat the right medicine and let the computer return to normal.