Why does my monitor go black for no apparent reason after I have left my computer on for a while?

Why does the screen go black for no apparent reason after I turn on my computer for a while?

Dust, viruses, bad sectors on the hard disk, memory quality issues

Enter msconfig in the start menu and press Enter. In the startup menu, remove all checkmarks (except ctfmon), save, and try to restart. Generally, you have too many startup levels or file conflicts.

Install 360 Security Guard, press F8 all the time when booting the computer to enter the safe mode to check and kill. Now nine out of ten viruses on the Internet are Trojans, so anti-virus software cannot detect the virus. It is recommended to install 360 to check and kill

The heat dissipation is not good, reinstall the CPU heat sink, the contact may be poor, you can replace the CPU fan

Replace the memory. There may be incompatibility or memory quality problems. Or clear the dust on the memory. If you find a hard disk impact sound and a blue screen, it means the hard disk has bad sectors. There is also a blue screen when you open the software. You can Try reinstalling the software first

If you have a blue screen when playing games, in addition to the above, the other possibility is that your computer graphics card or memory configuration is low

Generally the boot software is running too much

Enter msconfig in the start menu in the lower left corner and press Enter. In the startup menu, remove all checkmarks (except ctfmon), save, and try restarting (it can speed up the startup speed). Generally, the startup runs too much, so it gets stuck.

Install 360 Security Guard, press F8 all the time when booting the computer to enter the safe mode to check and kill. Now nine out of ten viruses on the Internet are Trojans, so anti-virus software cannot detect the virus. It is recommended to install 360 to check and kill

A black screen will appear for a while when booting

1. Hardware acceleration setting is too high

Hardware acceleration can make software that processes a large number of graphics run more smoothly, but if the computer hardware acceleration is set too high, it may cause a "black screen" phenomenon. To resolve the "black screen" glitch, first try reducing hardware acceleration.

1. Click the Windows "Start" menu, click "Control Panel", and then double-click "Display".

2. Select the "Troubleshooting" tab, and under "Hardware Acceleration", gradually drag the slider from "Full" to a position close to "None".

3. Click the "OK" button.

2. Disable 3D acceleration or upgrade the graphics card driver

If Windows has been configured for 3D acceleration, but the graphics card does not support this feature, a "black screen" failure may occur when running a game or multimedia program.

1. Click "Start", then click "Run", then type "dxdiag" in the "Open" box and press the Enter key.

2. Select the "Display" tab and click the "Test Direct 3D" button under "DirectX Function" to obtain the correct Direct 3D function.

3. If a rotating cube does not appear on the screen, it means that the graphics card does not support 3D acceleration. At this time, please click the "Disable" button after "Direct 3D Acceleration" to disable this feature.

If your graphics card does not support 3D acceleration, in addition to disabling this function, you can also contact the graphics card manufacturer to update the driver so that it supports DirectX 3D acceleration.

3. The graphics card driver is incompatible with the graphics card

The DirectX installer may incorrectly detect the graphics card and install a driver that cannot drive properly. Please confirm whether the graphics card driver used is correct.

1. Click "Start", then click "Control Panel", and then double-click "System".

2. Select the "Hardware" tab, click the "Device Manager" button, then click the " " sign before "Display Card" or "Display Adapter", then right-click the display adapter under it, and then Click the "Properties" button.

3. Select the "Driver" tab and click the "Driver Details" button to display the graphics card driver used. If the driver you are using is incompatible with the graphics card, click the "Update Driver" button in the "Driver" tab, and then follow the on-screen instructions to install a new version of the graphics card driver.

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