1, overclocking.

Now it looks like this: it may be fine just after booting, and the screen will turn blue after running for a while.

Overclocking (commonly cpu overclocking and graphics overclocking), due to the overload operation of hardware, leads to excessive internal operation, overheating of CPU or graphics card, resulting in system operation errors. If you want to overclock without blue screen, you have to do a good job of cooling. It would be much better to change a powerful fan and add some heat dissipation materials such as silicone. In addition, moderate overclocking or not overclocking at all is also one of the solutions. However, for most friends, overclocking operation is generally not carried out, so the blue screen caused by this problem is rare, and friends who do not overclock can ignore this. Friends who overclock are experts in this field, and they know how to deal with it.

2. The computer doesn't dissipate heat well.

Now it looks like this: it may be fine just after booting, and the screen will turn blue after running for a while.

It is easier to judge the heat dissipation problem. The desktop should check whether the chassis shell and power socket are obviously hot. If the socket is very hot, you can open the case cover to check whether the CPU fan and the graphics card fan are running, whether the running speed is normal, whether the dust is too thick, and whether the dust on the heat sink is too thick will also affect the heat dissipation.

Handling: Of course, if the fan doesn't turn, it's obvious. It depends on whether the running speed is normal. You can gently touch the CPU or graphics card fan with your fingers. If the running speed is slow or the fan is weak, it will not turn when touched slightly, so the fan needs to be replaced. Dust is thick and can be cleaned. Dust can be blown by a hair dryer.

3. Poor contact of the memory stick or memory damage.

Now: sometimes the boot screen will be blue, and sometimes it will be blue after running for a while. In short, there is no obvious when it will be blue.

Random access memory

Random access memory

A small part of the phenomenon of computer blue screen encountered in practical work is due to poor contact of memory chips (mainly the oxidation of gold fingers in computer memory and too much dust, which often happens in old computers)

Treatment method:

For memory problems, just open the computer case, pull out the memory stick, and check whether the golden finger in the memory is clean. If the gold finger is dull, the contact is oxidized. You can carefully rub the rubber insert on the golden finger until it shines and then put it back. General problems can be solved. If the problem is not solved, you can try to replace the memory test. If there are two memories on the machine, you can unplug one memory and insert only one test. The two chips were tested in turn. If one of them is not blue, and the one that causes the blue screen is still blue after cleaning the golden finger, it should be determined that it is a memory failure, and the problem can be solved by replacing the new memory stick.

Third, the hard disk bad track or data line problem.

Now: Generally, the screen is blue when booting into the system.

hard disc

hard disc

The hard disk is bad because a certain area of the hard disk is broken, and the operating system files are stored there. When the computer starts reading data, it can't read the correct data because of the bad track, which leads to the blue screen phenomenon. Because the hard disk, like the memory, carries some data access operations, if the storage area of an application program has bad tracks, it may not be blue when it is turned on, and problems such as system crash and blue screen will occur when running this specific program.

Treatment method:

Check the bad tracks on the hard disk. If the hard disk is broken, it is recommended to back up the data and replace the hard disk. Even if there are fewer bad tracks, this hard disk can't be used safely.

Method of detecting bad track of hard disk: Because the screen will turn blue when it is turned on, it may not be able to enter safe mode. It is a bit troublesome to detect bad tracks with software (for ordinary users, of course). First of all, you should prepare a USB flash drive boot tool and use this tool to check.

Hard disk detection

As shown in the figure, if "Redistribution Sector Count" or "Current Sector Count to Map" is yellow or the data item is not 0, do not measure it, just change it. If you are not at ease, you can also click "Error Scan" to detect. However, if the "Interface CRC Error Count" is marked yellow or the data is not zero, it may be due to a problem with the data cable or a poor connection. However, the item "interface CRC error count" will not be cleared here when the data cable of the hard disk is replaced or connected, but will always exist, as long as it is noted that the value will not increase after the data cable is replaced or reconnected.

Second, the software.

1, individual software or drivers cause blue screen.

Now: If the computer used to be normal, but the screen was blue when installing a software or updating the driver, or when using a software, you can uninstall the software or try the driver, but the incompatibility of this software rarely happens.

2. Computer poisoning

For example, some error prompt boxes often pop up, or the computer slows down, or a lot of junk software is automatically installed, and so on. There may be no problem when it is turned on, but a blue screen will appear when it is used indefinitely.

Solution: If the above conditions are met, you can carry out anti-virus operation after restarting the computer next time (why do you say that after restarting, because poisoned machines are generally slow, they are faster when they are first turned on, haha). I prefer to recommend some foreign free or trial versions and cracked versions of antivirus software, which are free anyway, and then uninstall after killing, but domestic free ones are not recommended. If you encounter a malicious virus, it is recommended to restore or reinstall the system.

3. The operating system is damaged

Now: the blue screen caused by the damage of the operating system is mostly in the process of booting, so it is a bit like the problem of bad hard disk.