Why does the computer flash when it is turned on

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Keep your hardware working at its best.

Check to see if the graphics card is loose or the power supply voltage is unstable.

Flickering issues after a computer reboot are usually caused by hardware or software failures. Here are some suggestions you can try to troubleshoot each issue:

1.Check the power supply: Make sure that both the computer's power cord and power plug are properly connected. At the same time, check if the power adapter is working properly. If the power adapter is damaged, it may cause your computer to not start up properly.

2.Check the memory: Unplug the memory module, wipe the gold finger (metal contacts) with an eraser, and reinstall it back into the memory slot.

3.Check the graphics card: If you have a discrete graphics card, check if the graphics card is loose or try to reinstall the graphics card driver.

4.Check your hard drive: If your computer won't turn on, it's possible that your hard drive is malfunctioning. You can try to reformat the hard drive or replace it.

5.Check for hardware compatibility: Make sure that your computer's hardware compatibility is good. If the hardware is not compatible, it may cause the system to crash or not boot properly.

6.Reinstall the operating system: If none of the above methods can solve the problem, try to reinstall the operating system. Before installing the operating system, back up your important data.

7.Seek professional help: If the above methods still do not solve the problem, it is recommended to seek professional help, such as a computer repair shop or technical support personnel.

Please note that advice from the old bench may not solve all problems. When trying to solve a problem, make sure you have enough knowledge and skills. Seek professional help if necessary.

There can be a variety of reasons why your computer flickers after it restarts, and here are some suggestions and solutions:

1.Check hardware connections: Make sure all hardware devices (such as monitors, keyboards, mice, etc.) are properly connected and secure.

2.Check the power supply: Make sure the power cord is well connected and the power supply is working properly. You can try replacing the power cord or power supply to troubleshoot the problem.

3.Check system logs: Use the system log checker to check for error messages. This can usually be found in the Event Viewer.

4.Clear cache and update drivers: Try clearing your cache (such as Storage Sense in Windows 10 or Disk Cleanup in Windows 7) and update all drivers.

This can be done by updating or uninstalling the driver in Device Manager.

5.Reset your system: If none of the above methods work to resolve the issue, try resetting your Windows system.

This can be done by booting into Recovery mode (Windows 10) or the Advanced Startup option (Windows 7) and then selecting "Reset this PC". During the reset process, you can choose to keep your personal files or delete all of them.

6.System Restore: If you recently installed a new driver or software, you can try using the System Restore feature to roll back to a previous Virgil date. This can usually be found in the search box in the Start menu.

7.System check: If the problem persists, consider doing a comprehensive check of the system, including scanning for viruses, fixing erroneous files, etc.

8.Seek professional help: If none of the above methods resolve the issue, you may need to seek professional technical support. This can be done by contacting the computer manufacturer's customer service, going to a computer repair shop, or finding a professional computer repair service.

Usually the motherboard is faulty or the power supply itself is faulty.

This situation is usually due to a faulty motherboard (damage, short circuit, etc.) that causes the ATX power supply to protect itself and not work, or the power supply itself is faulty and does not work.

Recommendation: In this case, it is best to replace and test with a normal power supply.

First, reconnect the computer cable. When you turn on the computer again, press and hold the F8 key, and when you see the advanced menu when you start the computer, select, the most recent correct configuration, press enter to try, and it can generally solve the problem. No, reinstall the system. I haven't done it, try it a few more times.

See if the power memory of the graphics card is good.

It feels like it should be a problem with the CPU temperature.

When the computer is turned on, there will be a self-test process for the motherboard and the peripheral devices on the motherboard, and then it can enter the operating system. During the motherboard self-test process, there will be a specimen flashing in the upper left corner of the screen, under normal circumstances, it will flash once, if the motherboard or external equipment fails, there will be a phenomenon that the cursor in the upper left corner of the screen has been flashing after booting. Here we divide the problem of cursor flickering after boot into several possible reasons for analysis:

1. The boot cursor flashes for a long time, but it can enter the system. This phenomenon may be due to bad sectors on the computer's hard drive, but it is still barely usable. Therefore, if such a phenomenon occurs, you should quickly back up the important data stored on the hard disk to other computers, so as not to cause trouble when the hard disk is completely broken.

Of course, if your drive is still under warranty, you can return it to the factory for repair.

Second, it can be self-tested when it is turned on, and it has been stuck in the screen of the cursor flashing after the self-test. This fault is also the possibility of hard disk damage, but it does not rule out the possibility of damage to other peripheral devices on the motherboard. It is recommended to do a full scan of the hard drive, preferably using a general hard drive scanning tool such as MHDD.

Once it is determined that the hard disk has bad sectors, etc., the hard disk should be repaired or replaced with a new hard disk immediately.

3. The computer can not be self-tested when it is turned on, and a black screen appears directly after the motherboard brand logo appears, and the cursor keeps flashing in the upper left corner of the screen. This fault is very troublesome, and it is mostly caused by the aging of the motherboard. We can use the minimum system method to unplug all the interface cables on the motherboard except for the power cable, and then use a screwdriver or key to short-circuit the boot jumper on the motherboard.

If the self-test can be normal, then we can use the elimination method to add the same boot detection to the other devices on the motherboard at a time until the failure occurs. The last device added is the faulty device, and of course, the interface connected to the device on the motherboard cannot be ruled out. If the minimum system method also fails to self-test and the cursor flashes, then the motherboard can only be repaired or replaced with a new motherboard.

Identify the computer hardware. There are many reasons for this, and it is generally caused by the computer not booting the system in the hard disk. So the underline will blink all the time.

There is no other way. If you can reinstall it, reinstall it or take a CD or USB stick to reboot the system, if not, take it to a computer store and reinstall it. Purely manual reply, thank you for adopting.

I haven't seen this problem before, it may be a system problem, after logging in to the desktop, does it still appear?

System issues contact the redo system.