What should I do if the computer boot button is on, but the screen is not on?

The boot button of the laptop is lit up but the screen is black.

It could be a power supply, a graphics card, a different monitor, a memory module.

If there is a problem, it is described as follows:

1. It's usually a problem with the power supply, try to change the desktop type, and the note will pull out the battery and only use the charger to turn it on.

2. If you use a discrete graphics card, you can unplug the discrete graphics card and use the motherboard integrated graphics card.

3. The monitor may be broken, you can try to change the monitor, but the probability of the monitor is relatively small, if the display indicator is green after booting, but there is no image, it may be that the monitor is faulty. 4. It should be a memory module problem, if the keyboard light does not respond, it may be that the memory is in poor contact and cannot enter the system; After power-off, open the case or disassemble the bottom cover of the laptop, reinsert the memory module, and wipe the gold finger, which is the metal contact part, with an eraser in one direction, wipe it clean and then reinstall it in the slot.

The computer boot button is on, and the display screen is not bright, indicating that the power supply part of the computer is normal. In order to solve the problem as soon as possible, it is recommended to change to a good monitor, including the monitor cable, and then turn it on, if it is not lit up in the detection host, including memory, CPU and graphics card. Otherwise, the monitors can be interchangeable or wired.

It's just checking the idea. Because I don't have much time, I can't go into too much detail. You try it first, and there are other phenomena to ask about.

If you're using a desktop, check the cable between the monitor and the graphics card. If it is loose, it may cause the display to not light up, and if the host is on, it proves that there is no problem with the power supply. Check to see if the screen shows no signal input.

1. If the display is faulty, try to replace the monitor 2. If the connection signal line between the computer and the monitor is not in good contact or the signal line is faulty, you can re-plug the signal cable or replace a signal cable. 3. If the graphics card fails, apply for after-sales treatment or replacement.

First check the line connection to make sure that the line connection is normal and there is no problem. Secondly, considering the problem of poor hardware contact, the desktop opens the chassis, re-inserts the memory module, the graphics card, and reboots it again to restore normal.

First of all, check whether the power light of the monitor is on, if it is on, it means that there is electricity. If it doesn't light up, the power supply is in poor contact. Then check whether the data cable is connected normally, plug and unplug it. If it doesn't work, it may be a problem with the computer hardware.

You first check if the wiring is plugged in, it is usually a power supply problem.

The computer is turned on but the display screen does not light up, these reasons will teach you how to solve it!

Troubleshoot the monitor first, then check for motherboard, graphics card, and hard drives.

1. If it is in the dormant standby state, press any key or swipe the touchpad, and the display will light up.

2. If the display screen still does not light up according to the above method, then the computer has failed.

3. The handling is as follows:

1. When the boot screen is not lit, use a flashlight lighting device to illuminate the screen at close range to see if the screen has content but does not emit light, if it is not displayed, it can be concluded that the computer motherboard circuit is faulty.

2.If there is a dim display, it can be concluded that there is a problem with the display backlight and the display needs to be repaired.

3. Perform a simple cleaning of the electrocuted part of the memory, then install the memory and turn on the computer. At this point, the screen can light up, then try to install the hard drive, and proceed to step 4; If it does not light up at this time, please replace the memory for testing or send it for repair.

4. After installing the hard disk, turn it on, if the computer can enter the system normally, then the fault is poor contact, if the computer screen is bad, it proves that the hard disk is damaged and the self-test cannot be passed, please replace the hard disk or send it for repair.

Restart the computer Press F8 many times when you turn it on, click Options in the menu that comes up, then click to enter safe mode, click Device Manager, find the display adapter and click to open, right-click the driver of the graphics card and click Uninstall, after uninstalling, restart the computer and the default resolution will appear, and the driver will be automatically installed, so that the computer's display will light up.

The question screen doesn't seem to have power.

It's a black screen directly.

Ask if the axis is broken.

Display itself: If the lights are on and off normally, the basic explanation is that there is a hardware problem inside the computer case. In addition to pressing num lock, you can also try caps locking.

Method 1 1Check if the power supply is good and can be charged, if you can, whether the computer has power, the power indicator is on, if there is a tool or borrowed tool, the laptop power supply is marked with a multimeter to see if there is a power supply The output voltage label is marked as a value, when he has a power output, connect the laptop well, and then turn it on, check that the power indicator is on the laptop.

2.Remove the battery, unplug the power plug, unscrew an opening on one side of the cover, lift the cover along the opening hole with a screwdriver to remove the cover, remove the cover and locate the memory stick. Use a screwdriver to open the buckle on both sides of the memory stick The memory stick can be released, gently put the memory stick, install it, etc., according to the removal method, the cover plate, install the battery, turn on the power button, try again, it can generally be solved.

Method 2 1Please check if the laptop has been damaged or dropped, damaged internal parts, it is recommended to bring it for inspection. If not, try plugging it in for too long last night.

2.Press the laptop's power button and there is no response or any indication. Most of these failures are caused by faulty power supply lines or faulty power buttons.

Method 3 1Hibernate state, press any key to restart the laptop, if the computer is resting, you can select "Personalization", then "Screen Saver", click "Change Power Options", "Change Computer Sleep Time", and make relevant settings, you can select "Never" (for example, Windows 7).

2.The screen is black after powering on, but there is sound. Try connecting an external monitor to see if the graphics card output is working.

3.You can prepare the corresponding tools in advance, disassemble the case, make the interface between the monitor and the motherboard closer, remove dust, and then place the various parts of the laptop one by one.

Let's take a look at what you're doing.

The question screen is directly not lit.

Check whether the monitor signal cable is connected to the main unit, whether it is well connected, and whether there is any wrong connection. 3. Turn on the power switch of the display, whether the power indicator of the display is on or flashing, and whether you can hear the sound of the host charging normally. 4. Whether the contrast and brightness adjustment of the display are too low, and the automatic mode of display will be resumed.

5.Remove all external devices, including the keyboard and mouse, leaving only the monitor cable. If the screen doesn't light up, the monitor is broken.

If you turn on the notebook, the signal light is good.

Maybe the wires on the display are broken.

Check it out at the repair shop.

At this time, press either Jian or press the power button, and the system will recover. 2. The laptop is out of battery. Although it is charging, the voltage is too low to start.

Charge for 20 minutes and then turn it on again. 3. Laptop battery failure. It can't be turned on, but the power button is charged so it's on.

4. The power adapter of the laptop is faulty. The voltage is insufficient and cannot be turned on. 5. The motherboard is faulty.

Won't turn on. 6. Memory or CPU failure, unable to boot. 7. The screen tube is burned out.

So the black screen is not displayed. 8. The screen cable is faulty. The screen is not displayed.

9. Screen failure.

Why is the laptop on-key lit, but the screen is not lit, the analysis is as follows: 1. The system is in a dormant or screensaver state. It's to save power.

At this time, press either Jian or press the power button, and the system will recover. 2. The laptop is out of battery. Although it is charging, the voltage is too low to start.

Charge for 20 minutes and then turn it on again. 3. Laptop battery failure. It can't be turned on, but the power button is charged so it's on.

4. The power adapter of the laptop is faulty. The voltage is insufficient and cannot be turned on. 5. The motherboard is faulty.

Won't turn on. 6. Memory or CPU failure, unable to boot. 7. The screen tube is burned out.

So the black screen is not displayed. 8. The screen cable is faulty. The screen is not displayed.

9. Screen failure.

There are two situations when the computer is turned on and the display does not respond: the screen is not powered on (the power indicator is not on) or the screen is powered on but there is no signal or the display "no sighal", the former indicates that the power is not on or the power cord is not in contact or damaged, and the latter is generally the memory module or monitor data cable is not in good contact, or the memory, graphics card, monitor or data cable is damaged.

The laptop boot button is on, the screen is not lit, it may be that the system response is relatively slow, press the boot button to forcibly shut down for five minutes and then turn it on, if it doesn't work, consider turning the system first, if it doesn't work after doing the system, you have to take into account the graphics card.

1. Please try to increase the brightness of the screen, and turn on and off to switch the display to avoid the screen brightness being too low or the computer screen will not be displayed due to the screen being turned off. 2. Boot up and enter the BIOS interface to check if it is displayed normally? (1) If the BIOS interface is not displayed on a black screen, it may be a problem with the computer hardware, please bring the machine to the service center for testing.

2) If the BIOS interface is normal, please try to restore the default value by pressing the F9 key on the BIOS interface, then press F10 to save and exit, and restart the computer. If it does not work, it may be caused by a system or driver software problem, try to restore or reinstall the system after backing up the data to solve the problem. 3. External display of notebook, switch external display; (1) If the external monitor is displayed normally, please uninstall the graphics card driver and reinstall it; And make sure you have installed any updates or other programs in the near future? If so, please uninstall the installed updates and recently installed program software through [Control Panel] - [Programs and Functions].

2) If the external monitor is not displayed, or you do not have the relevant monitor device for testing, it is recommended that you take the device to an ASUS service center for testing and confirmation. 4. Please confirm whether you have installed memory or other hardware? If so, please remove the additional memory and other hardware before turning on the computer to confirm.

If you still can't solve the problem through the above methods, please bring the machine to the service center for relevant testing by the engineer.

This means that there is a problem with your screen, but there is a simple way, see if it is right, you can use PE tools, check it, if PE tools can't get in, it means that there is a problem with the screen, or you use an HDMI cable, connect an external display, and see if there is a problem, if there is no problem, it means that your laptop screen cable is broken or, there is a problem.

Turn on and keep pressing the F8 key on the keyboard. Until boot mode appears, use the keyboard key to select Safe Mode, and then press the keyboard Enter key to confirm. After entering the system from safe mode, right-click on the computer on the desktop of the computer, and click "Device Manager" in the column.

Find the graphics adapter on the Device Manager page and click to open it, and you can see the graphics card driver of the computer. Right-click on the graphics driver and click Uninstall in the field that appears. On the pop-up page, click Uninstall below to uninstall the graphics card driver.

After uninstalling, restarting the computer will default to 800x600 resolution, and the driver can be installed automatically.

Press the power button, the screen does not light up, if only the power supply is on, and the hard disk light is not on, it should be a problem with the motherboard, and you need to go to the after-sales service or repair shop to test the motherboard.

It may be caused by system incompatibility, or restart the computer and try to reinstall the system.

It's likely to be a memory problem.,But since it's a notebook.,You can directly find after-sales service.,You don't have to fix it yourself, they're right.,Anyway, occasionally turn on and say that there's nothing wrong with the card, processor, and motherboard.,It's possible to be inside.。

In this case, there may be a problem with the hardware, try to replug the memory module first, and go to the after-sales service to check the quality of the hardware.

Do not rule out screen failure, or black screen due to hardware issues such as memory modules, graphics cards, motherboards, etc.

Notebooks are very common in everyone's daily life, but some problems will inevitably arise in the process of use. For example, some users recently reported that their laptops were turned on but the screen was not lit, and they were very distressed not to know what to do. So in this regard, the following article will share with you the solution to the computer that reacts when it turns on but the screen does not light up.

Here's how to fix it:

1. Remove the battery on the back of the notebook, connect the computer with only the power adapter, and try to turn on the computer, if the boot is normal, then it is caused by poor battery contact or battery failure.

At this time, it is necessary to change the battery.

2. Only use the battery, do not connect the power adapter, if the boot is normal, then it should be caused by a problem with the power adapter or a short circuit in the power interface of the notebook.

At this time, you should try to change the power adapter and try using a different power adapter.

3. Unplug the power cord, remove the battery, and press and hold the power button for 30 seconds without letting go. Try to boot up, if the boot is normal, then it is only caused by the abnormal BIOS of the motherboard.

This is where you need to enter BIOS mode.

The above is the solution to the computer boot response but the screen does not light up, and if you encounter the same situation, you can follow the above methods to solve it.