What is a computer black screen What is a computer black screen?

You're all right!! Let's be funny!! Why don't you ask what the monitor looks like when it's on!! Or give me the points...

Damn, the screen has become black.

Turn off the power of the screen.。。 You'll be able to enjoy the black screen.

When the computer enters the power-saving mode and the screen goes black, you can press the spacebar or the enter key to wake up. If you can't wake up, you can restart your computer.

If you enter the power-saving mode when you turn it on, it is usually because the memory or graphics card and connection are not connected properly. If the system enters this mode during operation, rule out the first case, which may be poor contact or poor heat dissipation in front of the circle. Check if your computer is set up to automatically turn off the display, if not, it's a hardware problem with the console.

For example, the capacitor of the motherboard or graphics card bursts and causes a black screen, and the CPU overheats and causes the motherboard to shut down for self-protection.

How to check for computer failure: If there is no power supply, check the power connection between the PC power supply and the power cord. 1. Check whether the power interface and power cord of the chassis are in good condition.

If the interface and power cord are damaged or broken, they should be replaced in time. 2. Check the power cord socket of the motherboard. If there is no damage, unplug the outlet and plug it back in.

Generally, this can be cleared to solve the problem of poor contact of the motherboard and no power on.

The role of the power saving mode

1. The power-saving mode is designed to extend the battery life of the mobile phone as much as possible, mainly to reduce the CPU performance of the mobile phone and turn off unnecessary functions through the settings when it cannot be charged in time, so that the battery life of the mobile phone can be supported until the next charging.

2. After turning on the power saving mode, the mobile phone system will automatically reduce the screen brightness, and the mobile phone system will also reduce the frequency of application background push, while restricting APP refresh and notifications, turning off the positioning function, limiting the running frequency and performance of the mobile phone, and disabling some important functions.

There are many reasons such as damaged monitor, damaged motherboard, damaged graphics card, poor contact of graphics card, damaged power supply, damaged CPU, etc. Start by checking that the contact is good. Check whether the contact between the graphics card and the monitor is good, and whether the contact between the graphics card and the motherboard IO slot is good, and if necessary, remove it and reinstall it again to ensure that it is installed in place and in good contact.

If there is no problem with contact, it is best to try a different monitor to make sure that the monitor is fine. If there is no problem with the display, check whether the CPU fan is running, if it is running, use a multimeter to measure whether the voltage output is normal to 12V, 15V, if it is not normal, you can change the power supply to give it a try. If it can't be solved, take out the components installed in the inner limb of the computer, leaving only the CPU, graphics card, and memory module, and the cause of the fault can be limited to the CPU, motherboard, and memory.

Generally, if there is a fault in the memory beating, there should be an alarm. If the memory fault is ruled out, only the CPU and the motherboard are left. Change to a normal CPU (should be compatible with the computer being tested), boot it and re-test, if it still doesn't work, you can only try a different motherboard.

Most of the black screen when the computer is turned on is a problem with the hardware of the host, first try to re-insert the memory module and graphics card, but not check the quality of the motherboard and other hardware.