If the power of the computer is accidentally cut off, do I need to cut off the power of the computer

You should be able to plug and unplug the memory module again, open your case, and the long and narrow one inside is it.

Your computer system is normal, and the sound of the drop does not matter.

Remove the memory module and wipe it with a paper towel. Then put it on accurately.

The memory module is in the chassis, a long one.

Cutting off the power supply directly when the computer is turned on may cause damage to the computer hardware and software. In terms of hardware, the computer is directly powered off, which may damage the computer's power supply, and a sudden power failure when the power supply is working may produce a large reverse electromotive force.

There will be an impact on the components of the power supply, resulting in damage to the power supply. Hard drives, especially mechanical ones, can also be damaged.

When the hard disk is working, it will rotate at high speed, and suddenly lose power, and the high-speed rotating head may damage the disk surface, which will have a certain impact on the head and platter of the hard disk. If it's an SSD.

A sudden power failure can result in data loss or even damage to some storage units. In addition, it may also have an impact on the COMS of the motherboard and the audio ** card on the motherboard, especially the graphics card due to its own power filter capacitance, which is very likely to cause instantaneous discharge leakage of the capacitor and damage to the BIOS of the graphics card. The power filter capacitor of the motherboard can also be used in the limb energy, which can cause leakage due to instantaneous discharge, causing damage to the entire system.

If it is hardware damage, it basically needs to be replaced and repaired, which usually needs to be solved by professional technicians after sales. In terms of software, direct power failure may lead to the loss of unsaved files, and the corruption or loss of various system files that are running, resulting in the system not being able to start normally or not being able to use normally after startup. This can usually be done by repairing the system files or reinstalling the system.

to solve the key hunger.

With the following destructive acorn friend excitation:

1. Hurt the hard disk, this is the most important thing, because of the sudden forced shutdown, the hard disk head can not be reset, the next time you turn on the re-seeking, it is easy to damage the hard disk repeatedly;

2. Ongoing operations and unsaved data will be lost, sometimes causing the system to be abnormal;

3. It is easy to generate high-voltage arc inside the chassis beam socks equipment and burn the equipment. If you press the switch on the power socket directly or unplug it, it is the same It is easy to hurt the display, and it will hurt the CMOS telegram cluster pool often, and the hard disk will also reduce the life of the hard disk It is a little less harmful than when the power is suddenly cut off, and the harm is very great, sometimes it affects the shutdown program of Windows, so that it cannot be shut down normally in the future.

When the desktop computer is not in use, it is recommended to unplug it.

1. When the computer is not in use, the electricity should be cut off. Because although the computer is not running, the auxiliary power supply in the computer has been working, and the computer is monitored at any time to see whether the computer is turned on, so it also needs to consume electric energy, and the power supply adopts a switching power supply, and the components have been subjected to high voltage.

2. In this way, install a switch switch on the power socket of the computer, and turn off the power of the computer when the computer is no longer in use. Some computers have a power switch behind the power supply, which is very safe.

Extended Materials. 1. High-quality power supplies generally have multi-national certification marks such as FCC, UL in the United States and Great Wall in China. These certifications are professional standards formulated by the certification body according to the technical specifications of the industry for power supply, including production process, electromagnetic interference, safety protection, etc., where the product that meets certain indicators can be used on the packaging and product surface after the certification is passed, and has a certain authority.

2. The generator can convert mechanical energy into electrical energy, and the dry battery can convert chemical energy into electrical energy. The generator and battery itself are not electrified, and its two poles have positive and negative charges, and the voltage is generated by the positive and negative charges (the current is formed by the directional movement of the charge under the action of voltage), and the charge conductor is already there, and the voltage only needs to be added to generate the current.

Cutting off the power is a good habit to use. The main harms of not cutting off the power are:1

Even if it is not turned on, in fact, the backup circuit in the power supply is still in a state of power consumption (used to detect the boot signal in order to start the power supply in time to officially output the power supply), and a certain amount of power needs to be consumed here; 2.The backup circuit works for a long time and is connected to the power grid, if the power grid fails to burst into high voltage (such as lightning strikes), it may lead to the power supply burning out, or even cause a larger fire;

As for the frequent switching power supply, there is a power shock, which does exist, but the computer power supply is connected to the moment only the backup part of the circuit needs to be powered, the required current is less, and the actual power supply impact is not large, especially the regular power supply products with a complete one or two EMI circuits (the role is to eliminate or reduce the power connection impact), the impact can basically be ignored. According to the situation you described, the power supply you used should be a cheap or fake product, and the corresponding EMI circuit protection will occur.

If the computer is not in use, be sure to turn off the power and unplug the cord after shutting down.

If you don't turn off the power, the host is still using electricity. Waste of electricity.

If you don't turn off the power, be careful when it rains. In addition, if the nearby transformer is broken, or someone steals electricity, or the wiring at home is not good, the power supply will suddenly rise, and the computer will be burned, and in serious cases, it will cause a disaster.

It is best to shut down the machine after the trial and cut off the main power supply to avoid the machine burning out or storage loss caused by bad weather.

Normal software shutdown is fine, no need to cut off the power supply.

Is that right? It has the following destructiveness: 1. Hurt the hard disk, which is the most important thing, because of the sudden forced shutdown, the hard disk head can not be reset, and the next time you turn on the hard disk to seek again, it is easy to damage the hard disk repeatedly; 2. Ongoing operations and unsaved data will be lost, sometimes causing the system to be abnormal; 3. It is easy to generate high-voltage arc inside the chassis equipment and burn the equipment.

If you press the switch on the power socket directly or unplug it, it is the same It is easy to hurt the display, and it will often hurt the CMOS battery, and the hard disk will also reduce the life of the hard disk It is a little less harmful than when the power is suddenly cut off, and the harm is very great, and sometimes it affects the shutdown procedure of Windows, so that it will not be able to shut down normally in the future. Directly turn off the power to the machine, in fact, is a misunderstanding, someone has done a test, directly turn off the power as long as the hard disk does not work will not hurt, before it was said that the power is harmful to directly refer to the hard disk, if the hard disk is reading and writing data when the power suddenly loses power or directly press the power key to shut down, at this time the hard disk head is very close to the platter and is in a state of high-speed operation, it is easy to make the head hit on the platter, resulting in hard disk damage and data loss, this is a terrible consequence, So many people summarize that they can't shut down directly, in fact, the current hard disk manufacturers have also taken a lot of protection technology to avoid this situation, and restarting directly after an occasional power failure or crash will not bring much harm, as long as it is not a power outage when formatting the hard disk, hard disk partition, upgrading the motherboard BIOS or restoring the image with ghost, there will not be much problem, but for the sake of insurance, it is not recommended to turn off the power directly, or it is better to shut down the computer in the normal shutdown order! There are a lot of things that will hurt, but the most important thing is the hard disk, the hard disk dies very quickly, not to mention the reduction of the life of the hard disk, it will also leave the wrong file under the system disk, which causes the machine to run slowly or even wrong, sometimes the wrong file can not even be deleted, it affects the system, and it is possible to burn the power supply or motherboard, this is a random occurrence, because the current may increase instantaneously, burn the motherboard or other hardware, if you often do this within a few months, your hard disk or CPU and other hardware circuits are not broken, Abnormal shutdown can be said to be a hard disk killer It is recommended not to use it all the time, or it is best not to use it CPU suddenly stopped, there is a serious harm to the silicon chip at work, satisfactory answer, Beijing everyone pictorial level 4 2009-08-17 will be ,,, if you force the power off, the next time you turn on the computer will check whether the hard disk is damaged,,, if there is he will repair it himself, so, when you start the computer, you find that the computer has a repair interface, you don't need to rush to click on the keyboard, otherwise he will skip by himself,,, Other Answers(7) Red Rain Level 62009-08-17You have answered yourself!

Just those questions! But nothing is going to turn off normally! In order to save yourself money, ruif-wong ka6 level2009-08-17 right, it's already very clear.

It's okay once or twice, as long as it's not often! ~1_﹏→

It has the following destructiveness:

1. Hurt the hard disk, this is the most important thing, because of the sudden forced shutdown, the hard disk head can not be reset, the next time you turn on the re-seeking, it is easy to damage the hard disk repeatedly;

2. Ongoing operations and unsaved data will be lost, sometimes causing the system to be abnormal;

3. It is easy to generate high-voltage arc inside the chassis equipment and burn the equipment. If you press the switch on the power socket directly or unplug it, it is the same It is easy to hurt the display, and it will often hurt the CMOS battery, and the hard disk will also reduce the life of the hard disk It is a little less harmful than when the power is suddenly cut off, and the harm is very great, and sometimes it affects the shutdown procedure of Windows, so that it will not be able to shut down normally in the future.

Answer 1: Data loss. As long as the abnormal shutdown has an impact on the computer (including power outage), you may be performing some operations or office, sudden power failure may cause your work to be interrupted, file loss, and more serious may also lead to the loss of important files in the computer system, resulting in the computer can not start normally.

2. The hard disk is damaged. Frequent power outages are the most serious damage to computer mechanical hard disks. When the computer is running, the disk inside the hard disk is always rotating at high speed, and the head of the hard disk will return to the zero track when the power is off, and the sudden power failure will cause the hard disk to return to the zero track immediately before the speed is slowed down and the platter will be deducted, which is very damaging.

Frequent sudden power outages will lead to bad sectors in the hard disk, which may lead to the loss of hard disk partitions and the direct non-recognition of the disk, then the data means that all the data may be lost, and then it will be regretted. Even an SSD can't withstand a sudden power outage, and if it's an SSD that's reading and writing, then a sudden power outage can make the data permanently lost and unrecoverable!

3. The motherboard is burned. If the computer loses power suddenly, and then the power is restored in an instant, the damage to the computer will be even greater, and in severe cases, the motherboard may be burned.

4. Affect the life of the host. It will have a large inrush current for the main engine, which will have an impact on the life of the main engine!

5. The power supply is damaged. There is no big problem with regular power supplies, and they are generally provided with protection modules. However, if it is some inferior power supply, especially the low-cost power supply that cuts corners, because there is no protection module inside, power failure is sometimes easy to cause power supply damage.

The most harmful power outage is the hard disk and the things on the hard disk, which can cause file damage and loss, or physical damage to the hard disk platter or head problems. Of course, it can also cause cached things to not have time to be saved.

Once or twice it won't, but it will damage your computer in the long run.

1. Damage to the hard disk. Cutting off the power supply directly without software shutdown will cause the hard disk that is spinning at high speed to stop suddenly, and the head will scratch the disk surface of the hard disk, which will cause the hard disk to be physically damaged, and the hard disk will be rubbed into a circle of traces, and even lead to the scrapping of the hard disk.

2. Damage to the system software, sudden power failure, a large amount of data in the system software not only causes garbage, but also causes the loss of software programs, and finally destroys the system software and makes it collapse.

Regarding the problem of automatic power off of HP 421 notebook running; Help you analyze and analyze, from the description, it is obvious that there is a short circuit inside the motherboard;

1. When there is a short circuit in the internal hardware of the motherboard, the power management control circuit relay will be turned on instantaneously for self-protection. Thus protecting other hardware from being damaged again;

2. The fault focuses on the power module circuit, graphics card chip related circuit, etc.; Such hardware failures are not easy to solve by ordinary friends, so it is recommended to go to a local repair shop with a good reputation for testing and maintenance;

3. The maintenance price is generally about 250 for parts damaged; Graphics card failures are generally around 400; If repaired.

The difficulty is a bit big, if you change the motherboard, it is about 700; Of course, the price of the motherboard T treasure is relatively acceptable, and the price is in.

around 450;

4. As for the maintenance point, it is recommended to find a better reputation and a slightly larger store; to avoid being deceived;

Hello, if you have only bought it for less than three years, it is recommended to make an appointment with HP engineers to provide door-to-door service, if the warranty period has expired, please go to the computer city to find a professional to deal with, generally such problems are the problem of power supply or motherboard, CPU!