There is no display on the computer boot screen, and the indicator light is not on

The power circuit is broken and the fuse.

2. Check whether the signal cable of the display is connected to the host, whether it is connected well, and whether there is any wrong connection. 3. Turn on the power switch of the display, whether the power indicator of the display is not lit or flashing, and whether you can hear the sound of the host powering on normally. 4. Whether the contrast and brightness of the display are adjusted too low, and the automatic mode of the display is resumed.

5. Remove all external devices, including keyboard and mouse, and leave only the monitor cable, and if the screen does not light up, the display screen is broken.

The indicator light of the computer is turned on, the screen is not displayed, and the indicator light of the computer is on, but it is not displayed.

Hello, I'm glad to answer for you, what should I do if the computer is turned on, the power light is on, but the screen is not displayed? 1. Confirm whether the reset button on the main unit is stuck. 2. Check whether the signal cable of the display is connected to the host and whether it is connected well.

3. Turn on the power switch of the display, whether the power indicator of the display is not lit or flashing, and whether you can hear the sound of the host powering on normally. 4. Whether the monitor contrast and brightness are adjusted too low, and the automatic mode of the display is restored. 5. Remove all external devices, including keyboard and mouse, and leave only the monitor cable, and if the screen is not bright, the display screen is broken.

There are two situations when the computer boots up and the display does not light up: the display is not powered on (the Hongkai power indicator is not lit) or powered on (the power shield is on the source indicator) but there is no signal or the screen shows "nosighal", the former means that the circuit is not connected, or the power interface or power cord is in poor contact or damaged, and the latter is generally a loose or oxidized memory module and the connection is not good

The computer only lights on and does not turn on the screen?

1. First of all, it may be because the memory and graphics card are oxidized, which will cause poor contact with the memory slot or graphics card slot, which will lead to the problem that the computer only lights on but does not turn on the screen. 2. It may also be because the graphics card of the computer is soldered, and the performance of the main chip will be reduced, so that the BIOS of the graphics card is wrong, resulting in the problem that the computer only lights on and does not light up. 3. It may also be because the boot circuit of the computer motherboard is faulty, such as clock, reset, power supply, MOS tube, etc., which will cause the problem of only lighting up but not turning on the screen.

Suggested workaround:

1. If the memory and graphics card are oxidized, you can clean the memory slot or graphics card slot and replace it.

2. When the computer graphics card appears to be soldered, the performance of the main chip will decline, so you must replace the graphics card in time, and you must contact professional maintenance personnel to replace it, which will be more professional.

3. When the boot circuit of the computer motherboard fails, the circuit should be overhauled by professional maintenance personnel, and the new motherboard can be replaced to solve the problem if necessary.