The computer often has no signal on the screen halfway through, and the reason for the crash is 50

1. The CPU is overloaded, or it is not working properly. Check CPU and graphics card cooling, dust removal, oiling, or replace fans.

Second, the power supply voltage is unstable and the power supply is insufficient. Replace high-quality, high-power power supplies.

3. Clean and defragment disks frequently.

1. In the "My Computer" window, right-click the drive letter you want to clean up - "Properties" - "Clean Disk" - check the files you want to delete - OK - Yes.

2. Clear the temporary file, start-run-enter "%temp%"-OK.

3. Clean up the registry and junk files with Optimizer or Super Bunny.

4. Close some startup programs, start-run-msconfig---start, in addition to anti-virus software, input methods can be turned off in general.

5. Delete unused program software.

7. Reduce the burden of memory, do not open too many programs. If you have too many documents open or too many programs running at the same time, you will not have enough memory to run other programs, so you should close the programs and windows you don't use at any time.

4. Upgrade the graphics card and network card driver, and change to a higher-grade graphics card.

Fifth, increase the physical memory, now the memory is generally at least 2G.

6. Set up virtual memory reasonably.

1. To play games, the virtual memory can be set to be larger, and the maximum and minimum values are set to 2-3 times of the physical memory.

2. The method of setting virtual memory is: right-click on my computer - Properties - Advanced - Performance Settings - Advanced - Virtual memory change - Select the partition where the virtual memory (page file) is stored in the drive list - Custom size - Set the value in the "Initial Size" and "Maximum", then click the "Settings" button, and finally click the "OK" button to exit.

3. The partition where the virtual memory (page file) is stored must have enough space, the hard disk resources are insufficient, resulting in insufficient virtual memory, in a computer, it is enough to set up virtual memory in a partition, and it is not necessary to set it in multiple partitions.

7. Optimize your computer with Guard.

Reinstalling the system is a one-size-fits-all solution to computer problems.

Your graphics card should be faulty.

A computer monitor is also commonly referred to as a computer monitor or computer screen. It is the most important computer component in addition to CPU, motherboard, memory, power supply, keyboard, mouse, and is a display tool that displays certain electronic file information on the screen through a specific transmission device and then reflects it to the human eye.

At present, computer monitors are divided into two categories: LED display and liquid crystal display.

There are many reasons why the computer shows no signal as soon as the computer is turned on, and you can try the following methods to solve them one by one.

Step 1: First check whether the external wiring of the computer is connected, plug in each cable again, and hold it to see if the fault is eliminated.

Step 2: If the fault persists, then open the main chassis to check whether there is any excess metal in the chassis, or a short circuit caused by the deformation of the motherboard, and smell whether there is a burning paste in the chassis, whether there are burned chips on the motherboard, and whether the capacitors around the CPU are damaged.

Step 3: If not, then clean the dust off the motherboard and check if the computer is in good condition.

Step 4: If the fault persists, unplug the reset cable and other switches and indicator lights on the motherboard, and then use the short-circuit switch to see if it can be turned on.

Step 5: If it can't be turned on, then use the minimum system method, unplug the data cable of the hard disk, floppy drive, and optical drive, and then check whether the computer can be turned on.

Then connect the above devices to the computer one by one, when connecting a certain device, the fault will recur, indicating that the fault is caused by this device, and finally focus on checking this device.

Step 6: If the fault persists, the fault may be caused by devices such as memory, graphics card, CPU, motherboard, etc. Then, use the plug-in method, swap method and other methods to check whether the memory, graphics card, CPU and other devices are normal, and replace the damaged devices if there are damaged devices.

Step 7: If the memory, graphics card, CPU and other devices are normal, then discharge the BIOS, use the isolation method, place the motherboard outside the chassis, connect the memory, graphics card, CPU, etc. for testing, if the computer can be displayed, then install the motherboard into the chassis for testing until the cause of the fault is found. If the fault persists, you need to return the motherboard to the manufacturer for repair.

Step 8: When the computer is turned on without display but there is an alarm sound, when the computer is booted up, the system BIOS starts to POST (power-on self-test), when it detects a fatal error in a device in the computer, it will control the speaker to send out a sound to report the error. Therefore, there may be a fault that the power is turned on without displaying an alarm sound.

If the computer is turned on and there is no alarm sound, the fault can be checked according to the meaning of the BIOS alarm sound to check the faulty device to eliminate the fault.

When the computer screen suddenly loses signal, it could be one of the following reasons:

1.Power failure: Check that the power cord is plugged in and make sure the power outlet is working properly. If the power supply fails, it may cause no signal on the computer screen.

2.Graphics card failure: If your computer is using a discrete graphics card, it is possible that the graphics card is faulty and the computer screen is not signaling. You can try to reseat the graphics card, or replace it.

3.Monitor failure: If there is no signal on the computer screen, it may be a display failure. You can try connecting your PC to a different monitor to see if you have the same problem.

4.Faulty cables: If the line connecting the computer to the monitor fails, it may cause the computer screen to have no signal. You can try replacing the cable, or check if the cable is loose.

5.Operating system failures: In some cases, operating system failures can cause no signal on your computer screen. You can try restarting your PC and check if the same problem exists.

Causes of Black Screen on Computer and How to Deal with It:

1.Failures caused by the host power supply: Black screen failures caused by the damaged host power supply or poor quality of the host power supply are common. Replacing high-power and high-quality sources is the best solution for this type of failure.

2.Failure caused by the quality of accessories: Poor quality or damage to computer accessories is the main cause of the black screen failure of the monitor.

Problems with the motherboard, memory, graphics card, etc., can definitely cause the appearance of a black screen failure. At this time, it is the quickest solution to replace the graphics card, memory, and even motherboard and CPU with the replacement method.

3.Connection quality between accessories: Incorrect or loose connection between memory, graphics card, etc. and the motherboard is the main cause of black screen failure. This type of failure can also be caused by a problem with the connection between the graphics card and the display.

4.Black screen failure caused by overclocking: Overclocking or overclocking parts that are not suitable for overclocking will not only cause black screen failures, but also damage to accessories in severe cases.

5.Black screen caused by other reasons: Other reasons such as incorrect CMOS settings on the motherboard and incorrect removal of the BIOS jumper on the motherboard can cause a black screen failure, in which case you can change the settings according to the motherboard's instructions.

Hello friends, in this case, you can use the next 360 first aid kit,**, after decompression, enter the safe mode to run the 360 system first aid kit custom full scan, check and kill again, and restart the computer after the kill is completed. Then open the 360 system first aid kit, select the repair function (the repair options can be selected all), repair it immediately, if it still can't solve the problem, then reinstall the system.

I think, it should be the fault of the graphics card, you take the graphics card off, use the eraser to wipe the gold finger, and then put it on. If not, consider changing the graphics card.

Check for poison. Take a look at the interface between the monitor and the console. If there is no problem, reinstall the system. Not yet, let's change the computer.