The computer won t turn on, and it doesn t reflect what key you press

Discharge the BIOS battery (restore the BIOS factory defaults) It is recommended to plug and unplug the graphics card and memory, clean it up, and polish the gold finger of the graphics card and memory (if you can't solve it, you can repair it).

Troubleshooting method for computer not turning on:

Step 1: First of all, check whether the external wiring of the computer is connected, and plug in each cable again 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 on the motherboard and connect it with other switches and indicator lights, and then use the change cone short-circuit switch to see if it can turn on.

Step 5: If you can't turn on the computer, 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.

Dear Lenovo users, you can try to set it up by following the steps below:

1. Turn off the computer and remove the battery and power adapter;

2. Press the power button many times in a row;

3. Turn on the power supply normally and start the computer;

4. Replug the computer's memory device.

If the above methods cannot solve your problem, please send your computer to your local Lenovo service station and ask our engineers to check and deal with it for you.

Lenovo service station information inquiry.

This is a reminder that there is an error in the BIOS settings when the computer starts the self-test. To press the del key to enter the settings interface, make the correct matching settings, then save and exit, restart, and it is normal. It is estimated that it is related to the battery of the motherboard that you buckled.

You go to the settings process and try to set the date and time again.

Is the vertical line on the screenshot you gave a crash?,Did you have it in the past?,If you didn't have it in the past,Then check the graphics card first.,Normally,There should be no of these vertical lines.,If there has been in the past.,Then you check your motherboard.,Prompt for BIOS problems,It's really not good.,Change the battery.,Restore the factory settings of the BIOS and try again.。

The battery is dead, press the F1 or DEL button to start. If you need to change the battery, you can unplug the hard disk cable and start the computer to see if it is a card logo

The computer doesn't respond when it's turned on, and any of the buttons are useless. Continue to restart the computer, press F1 after booting, or del to enter the BIOS, restore the factory settings, exit after saving, and restart the computer. It can be used normally.

This picture quality or computer settings writing factory reset,The settings need to be reset in the settings of the motherboard to boot,Then select no need to ask.,And then this one should be a keyboard with a round mouth to respond.。

The F1 key can enter an interface, and then press the ESC key Enter key on it, this big reason is because the motherboard battery is out of power, or caused by accidental power failure!

First of all, your computer has colored vertical stripes on the boot interface, that is, when the motherboard displays the interface, it means that there is a problem with your graphics card, or there is a problem with the display screen.

This is that the computer does not find the system disk, you can enter the BIOS to set the startup items, and the hard disk mode should be correct.

If you have a problem with your graphics card, there is a high probability that there is a problem with your graphics card! You can reinstall the block graphics card and see!!

You are the motherboard, the button battery is out of power, and the system can't be recognized, and you can change it.

Your motherboard battery is dead, just replace it with a motherboard battery!

You are prompted to press delete or F1.

Try this one. 7. If the fault persists, the fault may be caused by memory, graphics card, CPU, motherboard and other devices. 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.

Ask how to take the battery from the desktop computer.

What should I do if the computer does not respond after pressing the power button? What is the problem that the computer cannot be turned on after pressing the power button? Recently, several users have reported that the computer has not been able to turn on normally after pressing the boot button, and the following will give you an analysis of the specific reasons and solutions.

1.It is possible that the power button of the main chassis is broken, and you need to go to a professional repair shop to repair it2In the control panel, it is set that when you press the power button, you can unplug the cable connected to the host, discharge the host, and then press the power button to try not to self-check the hardware information of the motherboard, or go to change a power supply.

1. Check the power cord connection, 2. Unplug the power connector on the motherboard, plug it back in, 3. Change the power supply.

Check the power cord. Replace the power supply check the chassis power on button.