Do-it-yourself system unit repair

Computers are constantly working, the system and programs are updated. Due to our actions, or due to errors in programs, or maybe from the consequences of viruses, the system may begin to fail. Of course, almost any problem can be solved with someone's help or on our own.

Many people want to do their own computer repair, but there are 5 things that you should not do if you do not have experience, or at least 100% accurate instructions on how to do it right. Instead of solving the problem that has arisen, it can turn out even worse. There is a lot of different information on the Internet, both in the form of articles and step-by-step video instructions. But a computer is a complex device, so some things are worth doing only with full confidence in the correctness of the actions.

1. Editing the system registry. The Windows Registry is a complex database with a hierarchical representation of information. It stores all the settings and parameters of the operating system, installed programs and equipment. The stable and correct operation of the system directly depends on the registry. Corrupted or incorrect data in the registry can lead to a system crash. If Windows stopped loading or started to work worse after manipulating the registry, use a checkpoint restore.
2. Deleting files from system folders. In general, Windows warns you that you go into system folders, and by default their contents are not displayed (in the case of using the standard Explorer). But sometimes you need to delete or change files to solve a specific problem. But without special knowledge or correct and detailed instructions, it is better not to go there. There is a high risk of getting a broken system, and restore points may not help.
3. Do not dig into the system unit. I'm not saying that in no case do not open the system unit. It is enough just to clean it from dust, add a memory bar or replace the video card. But some try to replace the motherboard or cooling system on the central processor or video card, and then cry that nothing works. Computer components are very fragile and capricious things that are afraid of static electricity and awkward movements. Step to the left, step to the right and at the exit we have a non-working computer, or even smoke. If the computer does not turn on, you can try what you are sure of, and leave the rest to specialists.
4. Don't play with the BIOS. In addition to the operating system, the computer has another "mini-OS" that controls the computer before Windows loads. The BIOS controls the CPU, fans, hard drives, and other devices, and stores the settings for their modes of operation. Incorrectly changing the BIOS settings can result in a complete system inoperability, or minor problems such as slow operation or inaccessibility of some devices. Do you need it?
5. Command line manipulation. As many people know, the command line is a powerful tool for controlling the behavior of the operating system and other programs, but only when used skillfully. If you launch a command line and start executing commands, especially those related to changing the file system or other data, you must be sure that you are doing everything correctly. Otherwise, you may find yourself face to face with a more serious problem than before. And that's really bad.

Do not do computer repair yourself if you do not understand this or do not have precise instructions.It is better to ask a friend or a computer wizard to help for little money, or at least use reliable sources of information! For novice users, I advise you to watch a video on the program to optimize computer performance and solve problems.

Now almost every home has a personal computer. Each user can repair computers himself, with his own hands.

The technique is quite reliable, especially in skilled hands. Also, reliability, or better to say lifespan, will be added to it by a surge protector or a UPS (uninterruptible power supply), because it's no secret to anyone that the voltage in the electrical network periodically jumps.

This phenomenon is associated with various factors, breakdowns in the network itself or a transformer box, the inclusion of three kettles, two hair dryers and a couple of heaters in one outlet, a strong wind plays with wires, well, and so on. And some elements of the computer are afraid not only of a jump in the network, but simply of static electricity of human skin. So, before climbing inside the computer, we will not grab our heads, but put our hands on the battery, after which we will take up the repair of the computer with our own hands, so to speak, close.

So, the first problem is that the computer does not turn on. The first thing we do, usually, is to see if it is connected to the network, after which we press the button ten more times. If it does not help, panic sets in. You should not panic, check if there is electricity in the house. If so, there may be several faults. The most common problem is a faulty power supply.

By itself, it looks like a box with a fan inside. You can find out by connecting a different power supply to your computer. But few people have one. You can also, after disconnecting the computer from the network, disconnect the power supply from the motherboard (a wide connector, more often, white, do not forget about the second smaller connector). When all the wires are disconnected, now we reconnect the computer to the network. On the wide connector of the power supply, we need to close two contacts: green and black (any black). If it does not start, we go to the store for a new one.

Wide power supply connector

Very rarely, the cause may lie in the breakdown of the power button. This is also easily verified. On the motherboard we find two pins, where PWD SW is written next to them.

Power plugs on the motherboard

The easiest way to do this is by following the wire from the button. We remove the connector for connecting the button, and close them with a screwdriver. If it doesn't start, then it's not about her. Once again, this is an extremely rare occurrence and most likely the reason is in the power supply. After all, even a faulty motherboard will turn on, even for a second, but the cooling fans will start working.

By the way, it is the cooling fans that are the main culprits of the huge amount of dust inside the computer case. Any electronics is afraid of dust. Especially difficult. So periodically clean and purge the computer. You can do this with a can of compressed air, a vacuum cleaner, a watercolor brush will help us a lot in this matter, I confess, I prefer the fox.

The second problem is that it turns on and, immediately, turns off. I have come across this several times in my practice. Either the motherboard or the processor is faulty. Let's go in order. There are many capacitors on the motherboard that rectify the voltage. Due to overheating, they, over time, lose their capacity and fail. Therefore, make sure that the computer does not overheat. But do not rush to throw out the motherboard. The motherboard from overheating fails gradually. This is accompanied by a computer freeze, very often, with the same “Blue Screen of Death”. So, the “mother” will not be covered immediately, but will also pat your nerves a few months before that.

Processor and applying thermal paste to it

If it happened spontaneously.

Most likely, the processor is to blame, or rather, its insufficient cooling. And there is even a possibility that he is intact. What are we doing? Don't forget to put your hands on the battery. We disconnect the computer from the network. Remove the case cover. We need to get to the processor. It is located under the largest radiator, which, in turn, is located under the largest fan (in general, it is correct to call such a fan in a computer a “cooler”) on the motherboard. You can see that there is a wire coming from the cooler, or rather three wires usually wrapped. We disconnect them. Now we undertake to remove the cooler with the radiator. We are not in a hurry to grab a screwdriver. On almost all modern motherboards, modern radiators are mounted with clips and removed / installed by hand.

You may need to fiddle around. Most importantly, do not apply force with your entire arm or body weight. Only carefully and only with your fingers. Having removed this “structure”, we see a small metal (on modern computers) box. The lid opens by lifting the metal tab. We opened the lid, very carefully took out the processor. The fact that it burned down, you will not see, unless you throw it into the fire. First, look at the place where the processor was installed. There are many, many little paws. Look closely to see if one or more is bent. If it is bent, then holding your breath, you can try to straighten it with a needle, but I do not advise. We leave this procedure to the last resort. Next, we need thermal paste. You can buy it at a computer store. The thermal paste helps dissipate heat from the processor to the heatsink. After all, if there is even the slightest angle between the planes of their surfaces, then there is a gap. Thermal paste, as you might guess, eliminates this gap.

Extrusion of thermal paste on the processor

You need to apply it on the processor, after cleaning it from the old, dried one. Having installed the processor in its rightful place, we install the radiator with the cooler in place. We connect the cooler. We turn on the computer. If everything is the same, then most likely the processor will have to be replaced. Be sure to apply thermal paste to the new processor as well.

Third case. The computer turns on and beeps, does not boot further or even turn on the monitor. And we are all used to one short squeak every time you turn it on. This signals that the initial test is complete and all components are OK. But when it beeps something like a melody, this is already a signal of a malfunction of a component. The set of these melodies is quite decent, the meanings of each melody depend on the company and model of your BIOS. This can be found by finding the BIOS chip on the motherboard.

AMIBIOS BIOS chip

If AMI is written on it, then we look at the table below, if Award, then we look at the second table even lower, and if not both, go to a friend, neighbor, turn on the computer and go to Google: my.housecope.com/wp -content/uploads/ext/1717. Search by the name of your BOIS.

This phenomenon is mentioned earlier in this article. May be caused by motherboard overheating. But not only this can cause it. Overheating of the video card also leads to a blue screen. You should monitor the condition of the video adapter cooler. And, which has also been said, you should not play resource-intensive games in the summer heat. But in itself, this phenomenon is associated with a fatal error in the kernel of the operating system. When any program or driver running in the kernel tries to execute an invalid command, this error occurs. The only way is to reboot.

Case five. The computer hums "like a tractor." This is due to the cooling system, namely the coolers (fans). Over time, the plastic gasket in the cooler bearing wears out, it becomes clogged with dust. This is what causes it to vibrate and hum. The easiest way to fix this problem is to identify which cooler is buzzing and replace it with a new one. In general, it is very easy to detect.The cooler in the power supply almost never buzzes. The cooler on the video card and the cooler on the processor can buzz. I'll tell you a little secret. There are coolers that can be disassembled, and there are those that cannot. If a decision is made to eliminate the buzz, then the old cooler is no longer a pity. We remove it from the radiator, for this we have to twist it with a screwdriver. Need a small cross. So here it is on the table in front of us.

The place where the wires come out is usually covered with adhesive tape. Let's take this film and have a look. If we can disassemble it, we disassemble it. The plug can be removed with a small flathead screwdriver. Next, we freely take out the axis with petals from the cooler body. Surely you will see a dirty white piece of plastic - this is the remnant of the gasket. It is necessary to clean the axis and where it is inserted with a match, cotton wool, cologne. Making a new gasket is not difficult. Take a stationery knife, find an unnecessary core from a helium pen and carefully cut off a thin ring. This will be the new gasket. As a lubricant - at least sunflower oil. We put the axle in place, fix this case with a plug. And voila, the cooler runs as silently as new.

Case six. The computer turns on, the system boots (but very slowly). Everything seems to work, but, again, the My Documents folder opens for almost a minute. Etc. A typical hard drive failure. The hard drive is very afraid of dust. Try blowing it out well. Don't bother taking it apart. It must be sealed. If that doesn't work, you'll probably have to buy a new one. If such a situation has arisen, it is better not to hesitate with the purchase. At any moment, he can finally give up. The result is an irretrievable loss of your data. Here I would like to say that a backup copy of your data is an insurance not to lose them. Buy yourself an external hard drive that connects to your computer via USB.

Photos and other personal files that are dear to you are best stored on an optical disc. With proper storage, that is, in a box on a shelf, this is the most reliable way. Let me give you a few examples from my personal experience. I had an 8 GB USB flash drive. There were a lot of documents, all sorts of programs and other small things. A friend asked to throw off the antivirus. It happens that the USB port gives out the wrong voltage. The faulty motherboard is to blame. It was in such a USB port that my flash drive was destined to please. It just burned out instantly. No one will return your data to you, but the program or reinstalling the operating system is a matter of fifteen minutes maximum.

I would like to give you a number of general tips for operating a personal computer.

Warped Lizer Disc

And at best, to the terribly tedious process of disassembling the drive, cleaning it from disk fragments and assembling it. This is a simple procedure, but not everyone can handle it. Do-it-yourself computer repair, after all, requires certain knowledge and skills.

When something is broken, and after reading this article, I think you can determine it yourself, when going to the store for a replacement, be sure to take the broken device with you. This is especially important for people far enough away from technology. Indeed, in our time, you will be sold anything without a twinge of conscience. It is unlikely that they will care what kind of RAM you need (suitable for your motherboard). With a smile on his face and with the words “Take it! This is the newest RAM. Better not yet invented! ”, They will sell you the newest, most expensive and most unnecessary for your computer.

In conclusion, I will say that I have repeatedly had the opportunity to repair computers with my own hands. Friends and acquaintances quite often address this issue. We have covered all the main points. There is no point in fixing the rest of the faults.What is broken in the computer cannot be unequivocally repaired without special education and equipment. Nothing lasts forever, all computer components have their own resource. For the majority, by the way, this resource will not run out even by the time they become completely morally obsolete. I have an old computer, it is over thirteen years old. During this time, only coolers changed in it, it buzzed painfully loudly. At one time, it was an expensive and very worthy purchase, but now, after so many years, most of us have mobile phones that have many times greater performance than that computer.

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No technique, even the most expensive, is everlasting. Therefore, no matter how sad it may sound, in any case, someday your computer will fail. No, it can turn on and work somehow, but we don’t want to work for a PC that freezes and slows down every minute, right? The problem needs to be solved. By the way, if you still have a warranty period, and you are sure that you yourself did not contribute to the breakdown, hand over the equipment under warranty without any hesitation. Otherwise, check out the article, thanks to which you will learn how to fix a computer with your own hands.

First of all, you do not need to immediately look for a mechanical breakdown. It is possible that your computer freezes or works very poorly solely due to malware (users encounter such a nuisance very often). Also, the reason may be in some drivers that are not suitable for your system. Or because they installed some important, but unlicensed version of the program. In any case, first make sure that there are no viruses on the PC, you can do this using Kaspersky or a simpler utility - DrWeb Cureit. Next, clean your computer of various unnecessary files using the popular program - Ccleaner. Because of it, the PC can seriously hang.

Attention! If you need to disassemble the system unit, then in no case should it be done until you turn off the power. It is very easy to do this - you just need to unplug the power cord from the outlet. If you have the opportunity, I advise you to purchase an antistatic wrist strap. It will be safer for you to work with it, but this item is optional.

Power supply for computer - a very "vulnerable" thing that can fail at the most inopportune moment. The fact is that it is this thing that regulates nutrition, stabilizes it in case of unexpected changes. But if suddenly your voltage constantly jumps, then this stabilizer will simply burn out. How not to face such a problem? Do not use a power source that is not reliable. Get a "Pilot" that will control the power, act as its fuse in case of surges. Bad weather, namely a thunderstorm, can not only destroy our power supply, but also “walk through” all other devices connected to the network. So the computer should be turned off at such a time. And if you have a laptop and you work with it offline during such weather, then there is nothing to worry about.

In some cases, RAM can let us down. There is, of course, a special program for checking it (memtest), but don't rely entirely on its test results. If you need to check the performance of the memory with a 100% guarantee, then install a different memory bar that definitely works. Thus, having at hand one, and preferably several strips, we can definitely make sure which one is working and which is not.

The hard drive, of course, does not break down so often, but still with such a problem as hard drive recovery, each user may encounter. It is very simple to understand that the cause of a PC malfunction is in the HDD.When you turn on the computer, pay attention to what “notifications” the BIOS gives us. For example, if the hard drive is not working, then when we turn on the PC, we will see the following warning: “Select Proper Boot Device”. Sometimes there may not be any notifications, but the external signs of a breakdown will be “on the face”. The hard drive can sometimes make too strange sounds, in some cases it either stops working, then works again. In the event of a breakdown, the user may also hear something like a crunch, cod, and so on. If your disk is working, but you notice such external signs, urgently copy all your data to the media, because soon you will not get access to the HDD. We will not bother with the repair of such a spare part. So feel free to go to the store and get a new drive, and I advise you to pay attention to the SDD, not the HDD. This type of hard drive works much faster, and most importantly, this work will not distract you with its noise.

No matter how silly it may sound, but even because of the most ordinary button used to turn the PC on and off, you may experience a breakdown. The fact is that if the contacts are slightly damaged, or the button is too close to these contacts, the system will recognize the signal to turn off and turn off the computer. Thus, the user can disassemble the entire PC and not even guess that the cause of the breakdown lies before his eyes. So be sure to make sure that everything is in order with this part (check the contacts).

We will have really serious problems with the PC if the motherboard "flies". And here, even the breakdown will not be in the board itself, but in the digital tracks located on this spare part. The assembly of the motherboard is important here. For example, very often the board can be connected to the processor heatsinks not directly, as it should be, but using a separate connector. And when the PC is diagnosed (it needs to be done every year), you have to constantly “push back” the radiator, but this is not easy to do. Naturally, with such efforts, the board wears out. Small and invisible cracks appear. Now manufacturers are already quite serious about protecting the board, but still, each of you can face such a problem. In this case, there is nothing left but to purchase a new motherboard. Because under the guarantee we will not accept such a PC, because the board was damaged in fact by us.

If suddenly, when disassembling the unit, you saw that you have such a situation with the motherboard, this mount will need to be replaced with a direct connection of the radiator to the board.

When you turn on the PC, a small but loud enough sound is emitted (bios signals). Many users believe that this is “just the way it is supposed to be”, and this sound does not tell us anything. But in reality, if we hear one signal, then everything is fine with the PC, the whole system works without interruptions, and we should not have any troubles while working with the computer. Such a check is carried out by a special built-in program.

But what if a series of signals sounded at once? Or there was one, but a very long one. This signal, which, by the way, is emitted by the BIOS, is simply impossible not to notice. In this case, we obviously have some problems with the software, but what exactly, let's try to figure this out.

Basically, manufacturers install one of 2 BIOS versions on ordinary computers: either AMI or Award. The signals of the two versions are the same, but the reasons for these sounds are completely different. So first you need to figure out what kind of BIOS we have. Before Windows boots up, a small window will appear, at the bottom of which it will be written how we can start the BIOS. In most cases, you either need to press F2 or Delete.

As soon as we got into the BIOS after pressing the indicated button, the following appears in front of us:

At the top, the version of our BIOS immediately catches the eye. I have, as you can see, Award.

Also, do not forget that before you start repairing your computer, it is advisable to clean it from the dust accumulated in it. Sometimes, after this simple procedure, the computer gets a new life and does not need to be repaired. But even if our computer continues to suffer from various problems, you must admit that fiddling with a clean system unit is much more pleasant.

Dust and dirt in the inside of a computer is often a source of problems in its operation, and sometimes a complete failure of the entire system. It is difficult to give recommendations on the frequency of cleaning, since this is highly dependent on environmental conditions and the design of the PC system unit. I recommend at least once a year to remove the cover and look inside the system unit. For cleaning from dust, it is advisable to open both covers.

To remove the covers, they must be moved back a little. Cleaning the computer inside can only be done using a dry method using a small brush and a vacuum cleaner. The size of the brush is no more than 20 mm and it is better to use it with a flat working part and a hair length of 30-40 mm so that it freely penetrates through the fan blades.

The system unit is placed on a table or flat on the floor, after pulling out the power cord from the power supply connector. The remaining wires can be disconnected, but not necessarily, if their length allows. When cleaning from dust, first of all, you need to pay attention to the cooling system and the processor fan, since the radiator is very often clogged with dust, dirt, wool, and this can cause the processor to overheat. It is also necessary to clean the motherboard and all the fans and heatsinks on it.

Another responsible place is the video card, many of which have their own axial fan. Sometimes there is so much dirt under it that it stops and burns because of this, and most likely the video card will go the same way. It is better to remove it and clean it thoroughly.

Sometimes the cause of operating system glitches is also the contamination of memory modules, especially the one that is closer to the processor.

It is unforgettable that in the process of operation the fan of the power supply unit accumulates a huge amount of dust in it. It is even advisable to unscrew the power supply, unscrew the cover and clean it with a brush and a vacuum cleaner, and then assemble and install it in place. But if you are afraid to perform switching, then you can simply fold the power supply on the wires and remove the cover.

If you are too lazy to bother, then through the ventilation holes you can at least suck out the dust with a vacuum cleaner, at maximum power.

In no case do not wipe the dust inside the system unit with a rag, and especially a damp one. Do not use sharp objects and do not lose anything, especially various metal objects inside the system unit.

Many people have a large black box on their computer desk, called the system unit of a personal computer. Let's open it and deal with its device and stuffing.

The central processing unit, or CPU, is the heart of any computer or laptop. It is he who executes all commands sent by the user or the operating system, processes all information and controls all computer devices.

The principles of the device and operation of the motherboard are described. From the article you will learn what connectors are on the motherboard, how to check it and find out exactly what the problem is, as well as some secrets of repairing the motherboard with your own hands.

CPU-Z - a program that reveals detailed information about the processor, memory, cache and motherboard available in the computer.
Easy Recovery – for data recovery and diagnostics of hard drives and others

Some users have difficulty connecting a conventional computer system unit.Sometimes, due to connection errors or a poorly inserted connector, the computer may refuse to work at all. In general, the operation of connecting the system unit is not at all complicated, but there are some specific points in which it is easy to make a mistake.

The processor and video card in the computer need to create conditions for high-quality cooling, this is especially true on hot summer days. Good cooling, in addition to the removal of hot air through the cooler, is also created with the help of a thermal interface, which is also thermal paste.

The easiest way to make sure that the power supply is working is to change it to a similar one, how to do this and how to repair the old one later, we will find out by reading this article

Personal computer power supply - designed for uninterrupted power supply of the entire system unit and all its components. Therefore, the failure of this unit completely de-energizes the computer and it usually stops turning on. A malfunctioning computer power supply is the main cause of various “freezes”, blue screens and errors in the operating system and other programs, so this unit should be checked first of all. The algorithm for cleaning a laptop from dust is somewhat different, but you can do it yourself.

The video card in the system unit is designed to work with graphics, that is, it performs the functions of processing and displaying images on the monitor display. A modern video card has its own RAM, graphics processor and interface bus through which data is exchanged with the computer's central processor and RAM.

BIOS is an abbreviation for Basic Input Output System, which in English means Basic Input/Output System. The main task of the BIOS is to ensure the correct functioning of the hardware of a computer or laptop running an operating system. The BIOS is a set of functional microprograms located in a specialized CMOS non-volatile memory chip.

In order for a laptop or computer to work optimally and quickly, periodic maintenance of the laptop with software tools is required. Maintenance in this case refers to the use of specialized utilities and programs.

Decoding codes for BIOSes of the following manufacturers: AMI BIOS (AMIBIOS8), Award BIOS, Phoenix BIOS and others

A very important point in the maintenance and software repair of a laptop or computer is the knowledge and skills to clean the Windows registry, which is a hierarchical database of settings and various parameters of the operating system. The registry is a place to store information about settings and configurations of hardware and software, user profiles and presets, data about installed utilities and their changes. The registry can be represented as a catalog, which briefly describes what, where and how it is stored, what parameters it all has, and how it all interacts with each other.

During the repair of computers and laptops, preventive dust cleaning and replacement of old thermal paste are often done. Sometimes dried thermal paste can stick to the heatsink. It turns out that you planned to remove the heatsink to replace the thermal paste, but it is removed along with the processor.

If your computer or laptop, which has been working for 2 years or more, suddenly starts to fail or freeze, then it is worth examining its motherboard for swollen capacitors. In this article, we will try to answer the question about the correct replacement of capacitors on the motherboard and in what cases should this be done?

How to fix a computer mouse. After years of hard work and intense exploits, my A4tech X-710F handheld computer rodent has decided to retire.But it wasn’t there, I didn’t want to spend money, and not only because they didn’t exist, but also because I just got used to it

The causes of malfunctions and problems of an inkjet printer are very often not a breakdown that requires the intervention of a service engineer and disassembly of the printer and may well be eliminated by the average user. Inkjet printer failure symptoms can be roughly divided into two groups.

To create a local network or connect to the Internet, you will need to connect the network cards of computers and switching devices using a network cable. And the cable is connected to the network adapter using special RJ45 connectors, which are installed on the network cable using twisted pair crimping.

Hello dear readers of the blog my.housecope.com/wp-content/uploads/ext/654

While working on a personal computer, few people think about its technical condition. The user is far from thinking about whether the power supply is sufficient for the connected devices, whether the expansion boards are securely screwed in, and about elementary prevention.

It all starts with the failure of a personal computer. It happens all of a sudden and at the right moment, when you urgently need to print the most important document, your PC refuses to turn on. In order to be prepared for emergency situations and in the shortest possible time to contribute to the solution of difficulties, it is necessary to learn the basic techniques related to troubleshooting. In order to localize the cause of the failure, a number of actions must be performed.

1. Check the power cord connections to the network and to the system unit.

2. Check the connections of the monitor to the system unit and to the electrical network. When connected to a network and the computer is turned off, the indicator on the monitor should be lit.

3. If the PC did not turn on successfully, then it is necessary to turn off all devices as much as possible, leaving only the monitor, keyboard and mouse. If no image appears on the display and the computer appears to be on, ie. indicators on the case of the system unit flicker and characteristic familiar sounds of fans and other devices are heard, then a series of actions must be taken. Power off. Remove the left side cover of the system unit case. Remove the video adapter. Using an eraser, clean the contacts and install the video card back into the PCI-Ex slot. If there is no positive image output to the monitor, you must remove the video adapter from the system board and connect the monitor interface cable to the integrated video card. If a familiar loading picture appeared on the monitor after turning it on, then it was the turn to change (or upgrade) the video card.

4. If, after turning on the power, the system fans start to rotate, and the small speaker on the motherboard emits a characteristic squeak, then the problem is most likely in the RAM. If more than one bracket is installed in the slots on the motherboard, then it is necessary to remove it as much as possible, leaving one. The procedure with cleaning the contacts with an eraser can lead to a positive result. Using the enumeration method, it will be easy to identify a non-working RAM bar.

5. The case of the absence of any reaction of a personal computer to pressing the Power button is quite common. There are several possible scenarios. There is no contact with the electrical network (the plug is loose), or the power cord is broken, or there is a malfunction in the power supply. The failure of the power supply is a common reaction of the system unit to power surges, as well as connecting devices that consume more power, indicated in the characteristics of the existing power supply. Modern practice shows that replacing the described element is a more economical and reliable option than repair.

6.If the personal computer turns on, but the operating shell is unstable, startup applications are slow, then the solution, most likely, lies not in the hardware. The data available on the hard drive, like any device, needs to be prevented. Periodic defragmentation of data, cleaning the registry, and even reinstalling the operating system will not be superfluous at all. Taking a little time for preventive measures, you will save yourself from periodic system freezes and PC workload. Having an idea about the features of the main elements of a personal computer, you can easily solve the difficulties that have arisen, or not allow them at all.

That's all for now, and until new interesting meetings with you.
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