My computer has a bit of a problem, and it often doesn t turn on properly. 30

1 First see if there is any thermal grease between the CPU and the heat sink, whether you accidentally wiped it off, if it is gone, it would be good to apply some more.

2 See if the boot button of your host computer sometimes can't pop up when pressed down, find the boot jumper on the motherboard, unplug it and use a screwdriver to end it to boot up.

3 You have no problem with the monitor. This is the reason why a typical CRT (big head) monitor is damp, and the monitor will dry for a while after turning it on.

I beg for it. Plus a detailed discussion.

Lenovo 96 graphics card?

Do you power a nominal 230?

I feel like I've found a problem.

The power supply cannot be carried out, and it is possible to break the power supply and graphics card of the motherboard.

Try a larger power supply.

The South Bridge issue ......After changing the motherboard, scan the hard disk with hdtune and see, maybe there is nothing wrong with the hard disk at all.

Most of your problems are the problems of the motherboard, it is possible that the BIOS chip is broken or the South Bridge is broken, the hard disk should be fine, it is best to try it with elimination, first change the motherboard If there is no problem with the motherboard, it is the problem of the motherboard, try it one by one.

The hard disk is easy to change,Change the hard disk first,Stuck in win7,It should be from the hard disk directory can not read the file,It can be related to the hard disk。

Ay! Go buy a CD! The disc of the system reorganization, go to the computer where you bought it! It won't be expensive! Reassemble it! After the reorganization, there are still such problems come to me!

Do you dare to say something specific?

Is the voltage stable at home? Or is the power rating of the power supply sufficient?

This occasional problem that cannot be turned on normally and can be used all the time after turning on is usually caused by the power supply.

The boot display reboot and select proper boot device cannot enter the computer system, mainly because the computer does not recognize the hard disk. This problem is big and small, it may be because of bad contact, this is very simple, or it may be caused by the failure of the hard disk, and the following will tell you how to deal with it.

You'll need to recheck all the parts in the case

1. Whether the CPU fan is normal.

2. Whether the fan of the graphics card is normal.

3. Whether there is hardware with poor contact.

4. Take off the hardware and clean up the dust before putting it back on.

5. It is normal for the hard disk to make a sound, and the sound belongs to.

Resonance is visible, don't worry too much.

1. It is the sound of reading the hard disk, maybe the sound of your hard disk is loud or there is a problem with the system. There are many reasons why the boot is not working properly, depending on your situation: it may be that the hardware is not in good contact.

This situation should be a bad sector in the hard disk, it is recommended to optimize it as shown below:

Or use the software to check it, repair the fragmented files of the hard disk, if you use it for a long time, it will cause bad sectors on the hard disk, if you have any questions, I hope it can help you.

Next time, there is a countdown when you get to this step, press any key at this time to skip this step, and enter the system to check whether there are bad sectors on the hard disk.

It looks like the partition file has been corrupted, so it is recommended to use velvet security software to prevent the partition file from being corrupted again.

In addition, it is not excluded that the hard disk has bad sectors leading to the loss of partition files.

This is the browser's verification of the security certificate, if you are familiar with the credible**, the point is that you can enter**, if it is unknown**, it is recommended not to enter.

By the way, this is a pure software problem, and it has nothing to do with the hardware, let alone the motherboard battery is dead.