Sergey Gvozd. a year ago:

They rebuilt my motherboard, it works like new. And it turned out cheaper than buying even used. I contacted them more than once. They even repair what others advise to throw away.

Elena. a year ago:

At one service they forced me to change it along with motherboard processor and video card. It's cheaper to buy a new system unit. Motherboards, they say, quickly become outdated and try to find the same one.

Valery Zimin. a year ago:

I bought a supported ASUS, and after several days of cunning manipulations with the programs, it began to constantly make noise and get very hot, even without running a large number of programs. It turned out that the problem was in the cooling system. I had to order dust cleaning because the laptop had to be completely disassembled. But the guys worked quickly, the master completed the work at home on the day of the call. Now it works quietly. Definitely respect.

Alexandra. a year ago:

They helped with the computer, the technician came to the house. He said the board was faulty. The next day the computer was already working. Clean guys!

Andrey. a year ago:

Helped to reflash the BIOS under intel processor g4560. Everything works great. Thank you very much.

Eugene. a year ago:

The computer did not start. I contacted the ComprayExpress service center, after diagnostics they said that the capacitors were covered. The repair was not expensive, the computer works fine.

Ivan Petrochenko. a year ago:

I decided to upgrade my PC, bought a new Asus motherboard, replaced it, but the computer refused to work. Do not think that it is so easy, and it is better to immediately contact professionals. If I had applied straight away, I would have saved a lot of time and nerves. I recommend ComprayExpress, fast and inexpensive. The master came home, it was very convenient.

Andrey Ivan Petrochenko. a year ago:

So say, I decided to attach the old power supply to the new mother.

Vladimir. a year ago:

Great idea with discounts for reviews. I had a problem starting my computer, Lately it turned on every other time, called the repairman with some apprehension, my friends scared me with scammers who were charging prices of more than 15 thousand. But fortunately, everything went well, master Sergei said that the motherboard needed to be repaired or replaced, since there were three swollen capacitors on it. I decided to buy a new one, the board itself cost me three and a half thousand and two thousand for four gigabytes of RAM, now it’s six. The computer began to work much faster, I didn’t even expect it. The entire repair cost me seven eight hundred because I also asked him to clean the system and install an antivirus. In general, I was very pleased, I will recommend your service to my friends, thank you.

from 150 rub. RUB

Restoring a motherboard is certainly not an easy process. Here you need a skill that consists not only in correctly disassembling your device and getting this circuit out of it, but also in diagnosing it.

After all, in order to restore the motherboard, you first need to find the element that is faulty, and only then replace it.

This skill can be practiced on outdated and no longer used models. Our service center employees have enough experience to do this accurately and quickly.

The cost of the service is 150 RUR.

A task that should be entrusted to professionals! We will complete it with a guarantee and in the shortest possible time!

What tools are needed to repair the motherboard?

In order to repair the motherboard, you will first need to select the appropriate tool from what you may have around the house. Namely, you will need:

All these items, you see, are not necessarily found in every household. At our service center, specialists will select such a set with ease, precisely matching the specific type of damage that they will identify when checking your motherboard.

Restoring the motherboard: features of the process depending on the type of failure

The first step is to determine which of the elements of the microcircuit has become unusable.

• The most frequent malfunction The motherboard is the combustion of one of its bridges: north or south. Determining this failure will not be difficult: when your device is turned on, the motherboard soon begins to overheat, which is easy to understand by simply touching the large chip with your finger.

If the bridges are really burned out, then they are soldered off and new, similar ones are put in their place. However, the cause of overheating of the microcircuit may well be field-effect transistor one of the bridges (northern), which fell into disrepair.

Therefore, it is still better to clarify the cause of overheating of the bridges with a professional.

• A little less often, the motherboard battery breaks down. Then, in order to restore the motherboard, you must first replace this particular battery. For this purpose, a clamp is bent on the board, which is designed to hold the battery, after which it itself is pushed out by a spring. You will have to pick up a new one at a computer store and install it in the same slot where the damaged battery was.

Contacting our service center can save you from this; the specialists themselves will select and install the required battery, after which they will test it and check the appropriate settings.

• If the cooler is broken, then replacing it is not an easy task, since there are a lot of capacitors around it, and in addition, it itself is attached quite securely. It's hard to take it off If at least one of its mounts is damaged, the processor will inevitably break down in the end.

Entrust this to our specialists, and the result is guaranteed. They will carefully remove the cooler, opening all the connectors, and replace it with a new one.

• One of the motherboard capacitors may also be faulty.

Any computer necessarily has a motherboard in one form or another. This is its basis to which all components of the system are attached.

Of course, in the diagnostic process, professional repairmen use much more equipment and various techniques, for example, an oscilloscope. But the basic methods are checking the voltage and the presence of a short circuit along with a visual inspection.

The main structural elements of the motherboard are as follows:

1. Chipset is a microcircuit (one or two, depending on the board model) that provides complex communications central processor, random access memory, video cards, other expansion cards and peripheral devices. In the double version it is divided into north and south bridges.
2. Multicontroller- a relatively small circuit that is responsible for the correct startup of the board and performs a lot of other functions.
3. Integrated (soldered) expansion cards– network, sound and, in some cases, video card.
4. The chip in which the BIOS is written– low-level operating system. By analogy with a person, these are his instincts.
5. Battery for autonomous power supply of the BIOS chip.
6. And many other less significant components associated with multiple power circuits and additional functions.

Diagnostic features

The process of detecting motherboard faults and the reasons that cause them is full of nuances. But the basis of all diagnostics are two methods - checking the power circuits using a multimeter and visual inspection.

Traditionally, technicians first check the current parameters in the key elements of the board. This allows you to localize the damaged area. Sometimes you don’t need more - it’s enough to replace a damaged transistor or microcircuit.

The second method is visual inspection with the naked eye, using a magnifying glass and under a special microscope for troubleshooting electronics. This method allows you to detect damage to the structural elements of the board, swollen capacitors, breaks in the conductor tracks, oxide deposits and other defects.

The design of such a board is complex and includes hundreds of elements of varying degrees of complexity - from simple resistors to chips on crystals.

About breakdowns and their repair

Unfortunately, not all damage to the board can be repaired. For example, a short circuit in one of the USB connectors can lead to burnout of half the power circuits. Such a “patient” will have no chance of recovery. In such a situation it is easier to buy new board.

The most repairable breakdowns are those associated with:

• with failed capacitors, transistors and PWM controllers, which just need to be replaced with new ones;
• software problems with the circuit on which the BIOS is written;
• short circuit or other problems of the multicontroller;
• Built-in expansion cards for audio, network and video.

Sometimes all problems can be solved by simply replacing the battery. Some motherboards simply do not turn on when the voltage drops below 2V.

With mechanical damage the situation is somewhat different. The success of repairs directly depends on their nature and scale. A small scratch on the conductor tracks near the cooler mounts is easy to remove. The main thing is to detect such damage. On the other hand, extensive mechanical damage to the textolite base means a death sentence for the motherboard. That is, the success of the repair (if it is justified) largely depends on the nature of the breakdown.

What are the most common motherboard failures that you can repair yourself?

In the majority motherboard failures have the same causes and in this article, I will tell you in detail and show you how to repair everything with your own hands and at home, while saving quite a bit of money!

What are the most common motherboard failures?

When troubleshooting motherboard failures, you will need the following tools; soldering iron, a can of compressed air and a brush, a solution for removing oxides from the tracks, thermal paste and hot glue.

1. Swollen capacitors.

Swollen capacitors on the motherboard sometimes make a squeaking noise, the computer constantly turns off, blue screen of death.

Can be soldered from an old motherboard.

2.Oxidation of motherboard tracks.

Leads to a short circuit of some parts of the microcircuits.

Removing oxides with special solutions will help.

3. Dust and dirt can lead to short circuits and overheating.

This requires cleaning with a brush and a can of compressed air.

4. The battery is low, time is lost.

The battery is not expensive, replacing it is not difficult.

5. Failure of the sound card or microcircuit on the motherboard is the first sign of no sound.

Simply replaced with a separate module in the motherboard slot.

6. Quartz resonator, the computer turns on and off by itself.

Resoldering from an old motherboard.

7.Failure of transistors on the motherboard or power supply, the computer does not turn on or there is no image on the monitor.

Replacing a similar part from an old motherboard.

8. The BIOS chip fails, the computer does not turn on and does not boot.

Here you can reflash this microcircuit or replace it with an analogue from the old motherboard.

9. Failure of the northern and south bridge, no image USB and other inputs do not work.

Only warming up will help here; replacement is a very labor-intensive and troublesome procedure.

10. Break in the microcircuit track.

Such damage is caused by mechanical impact or a short circuit on the motherboard, you can try connecting the tracks using a thin wire and a soldering iron.

More detailed video;

These are the types of motherboard failures that occur in computers.

If you liked this article or found it useful, then share it with your friends through the social networking buttons.

from 150 rub. RUB

The basic component of every PC is the motherboard. Physically, it looks like a multilayer printed circuit board, where all the leading parts of the system are mounted: RAM, central processor, video adapter, sound card, a number of additional equipment.

It contains special connectors designed to connect peripheral devices and additional components for which, as a rule, they are used PCI buses, PCI-Express and USB. Most modern versions of motherboards are capable of working with remote devices that are connected via Wi-Fi, Bluetooth or infrared.

The most important component of the motherboard remains the chipset.

It is a set of specific chips: Memory Controller Hub, as well as I/O Controller Hub, otherwise referred to as the north and south bridge.

Today, options with bridges connected in a single chip are also used, but such solutions are rare.

• North Bridge allows you to establish joint operation of the central processor with the graphic elements of the computer, as well as with RAM. Sometimes there are options in which the video subsystem is built directly into the northbridge.
• As for south bridge, then it is necessary for the correct operation of the central processor with PCI devices, hard drives, ports for connecting equipment, and others. Most often, it is these two elements that determine the basic properties of the board and the ability to connect this or that equipment to it.

What work does motherboard repair include?

Our company repairs motherboards regardless of manufacturer, modifications and characteristics. Highly qualified specialists, the latest equipment and extremely reliable components allow us to carry out a full range of work on motherboard repair, from micro-soldering of SMD parts to reballing of Ball grid array chips.

The most common repair procedures are the following:

• installation of new bridges;
• updating the firmware of BIOS chips, installing panels;
• installation of new SMD and BGA parts;
• Troubleshooting board tracks;
• installation of new sockets and slots for RAM;
• replacing motherboard batteries.

The price for repair work is calculated taking into account additional procedures such as diagnostics and testing. The cost also depends on the spare parts used during operation. It is recommended to bring the motherboard for repair complete with memory and processor.

Main causes of motherboard failure

Malfunctions in the functioning of the motherboard can be expressed by such “symptoms” as a refusal to turn on or, after turning on, very unstable work. In this case, the computer can continue to function in the same mode, but after a reboot there is a significant deterioration in its performance.

Motherboard malfunctions significantly affect the speed at which the processor processes various operations.

The main reasons for board failures can be divided according to the following principle:

• visible reasons(voltage surges and instability, faulty elements on the board, overheating);
• manufacturing defects, which also cannot be excluded.

In some cases, it happens that not the entire motherboard breaks, but only a certain component. To find out for sure, professional diagnostics are needed, as a result of which the type of malfunction, its nature will be determined, and a further action plan will be developed.

Since the motherboard plays an extremely important role in the functioning of the entire computer, and its condition largely determines how fully the entire system will work, the issue of its repair must be resolved extremely carefully. Only an experienced technician can give you a 100% guarantee that the repaired device will work without failures and in full operation.

Solving the problem on your own is fraught with serious consequences, which will only aggravate the problem and make a trip to the service center inevitable.

Repairing a computer motherboard is a rather complex and time-consuming process, so doing it yourself without the proper knowledge and skills will not be easy. To return the device to functionality and correct functioning again, it is best to entrust its repair to professional craftsmen.

Our specialists are ready to provide you with a high level of service and professional performance of services. We try to fulfill orders with high quality in the shortest possible time.

Despite the fact that the cost of each individual procedure is determined individually, depending on the specifics of the repair, on average, the cost of the order is quite affordable and acceptable.

When working with the motherboard, you should take into account certain moments, on which the success of repair work depends.

Before activating the board, you must inspect it very carefully. Particular attention should be paid to the CPU power point. If there are problems with the VRM CPU, there is a risk of damage to the central processor. If a single transistor or microcircuit fails, you are no longer allowed to use the motherboard. Suspecting these elements in incorrect operation, you need to measure the resistance of the transistors using special equipment.

Both the upper and lower transistors should have resistance values ​​at the same level. If there are problems with the VRM, the ohmmeter readings will differ (the discrepancies can be either minimal or serious).

It can be noted that this type of problem occurs infrequently and professionals rarely have to solve such problems.

If the VRMs are functioning correctly, you can install the CPU, POST cards and turn on the board. It is important to note that some versions of Intel motherboards have a specific resistor that does not allow the Celeron D or Prescott to start.

The power supply turns on only when the CPU is installed. If it is started by the motherboard, it is necessary to measure the voltage on the transistors. Another important point is overheating individual elements devices. Especially this problem relevant for the south bridge.

It is likely that the motherboard will start when the power connector is unplugged. Therefore, you need to check whether it will work if you short-circuit the black and green wires of the power supply. If it still works, you need to make sure again that the south bridge is not overheating.

• If the motherboard, when turned on, does not display absolutely any codes on the POST card or is in RESET, then in this case it is necessary to check the voltage on a number of electronic elements. This especially applies to the CPU, the substrate, all pins, contacts, etc.



• Further repair of the motherboard involves inspection of the board. Particular attention here is paid to the area of ​​​​wires that connect to the bridges and connect them to the CPU. You need to make sure that there are no shorted contacts in the connectors. After that, the CPU is reinstalled, as well as the board is checked for startup with the CPU, BIOS, and other minor bends of the motherboard clamped.
• Followed by make sure that the device recognizes the RAM. In this case, two channels are tested at once. If the result is negative, you will hear the corresponding sound signal. If everything is fine, the download will continue. About problems of this element They say errors D3 and D4, you need to test both slots. If problems with the RAM are detected, a number of electronic elements under the DDR connectors are measured. In addition to voltage, the resistance of the contacts associated with the power supply is also measured. Ideally, it should be completely absent. Also, the causes of malfunctions may lie in the legs of the sockets for RAM cards and connections to the north bridge.



• Quite often there are problems such as failure to recognize the video adapter by the motherboard. Most often, problems lie in the lower or upper right contact, where measurements reveal an incorrect voltage value. Also, the breakdown may lie in the left leg; it is diagnosed using resistance measurements. Other malfunctions, as a rule, appear as a result of careless handling of the device. In particular, there may be problems with the connector, with a missing leg or damage to the cable leading to the north bridge. Perhaps the problem will be solved by re-installing the video card into the socket.
• In all other cases, when the motherboard executes certain codes, but does not go to boot directly operating system, That BIOS is being flashed. It should also be flashed on working motherboards, as this allows you to achieve guaranteed confidence in the absence of glitches from the BIOS in the future.
  The main signs indicating the need for firmware are codes 03 and E9. This suggests that the old BIOS does not understand the inserted CPU. Especially often, such codes arise due to poor or completely absent contact in the jumper.

Since flashing BIOS is a rather complex process, it is highly not recommended to do it yourself, especially to those users who do not have the appropriate skills and experience. In order not to aggravate the situation when a minor malfunction develops into serious problem, it is best to seek professional help.

Our specialists are ready to provide you with their qualified services promptly and promptly. top level execution.

Himself The BIOS flashing process begins by writing a file with the image of this board onto a clean formatted medium. The motherboard performs all actions to rewrite the BIOS independently, and then turns off. This process lasts only a short time and is accompanied by certain sounds.

Having decided to repair the motherboard, then faithfully and the right decision will be - flash the BIOS, regardless of the specifics of the repair work. This will ensure the correct and full functioning of the device in the future.

The next action in line is launching the OS. The functionality of the peripherals is checked and the stability of operation is checked. If the OS loading was successful, then this is an almost 100% guarantee of the continued correct functioning of the motherboard.

In most cases, the main causes of various types of failures are swelling of the CPU power supply or its overheating. Also, over the years, the cooler fasteners may become loose, which leads to it “walking” in the motherboard without sufficient rigidity. Regulation, in this case, is carried out manually. The fan is attracted to the mount and moved away from the CPU, thanks to which it remains relatively cool. At the same time, the CPU can become very hot, which can lead to new problems. You can measure its temperature in three ways:

1. manually;
2. via BIOS;
3. on the back of the board.

If the CPU overheats, there are two ways to solve this problem: change the thermal paste or attach the fan to new fasteners.

If the cause of the motherboard malfunction was some small defect that was eliminated, 3Dmark testing can be carried out much faster. If the device performs poorly, it is better to increase the number of tests, spending a little more time.

If the failures continue, you need to disable as many peripheral elements as possible in the BIOS(sound, USB and others) and try to test without them - this will probably reveal problems.

It also makes sense to note how often they appear, how spontaneously this happens, and also measure the supply voltage of the CPU and pins again. In addition, an ohmmeter will again be useful to re-measure the resistance of the left leg.

Motherboard testing. This process consists of checking a whole list of devices:

We will help you repair motherboards!

If your motherboard does not want to work for one reason or another, the Expert company specialists are ready to help you solve this problem. Highly qualified specialists, excellent equipment service center and the ability to obtain any necessary components and radio parts allow us to solve most of the problems that arise with this element.

You fill out an application online or by phone

The technician arrives at the address within 1 hour

The technician identifies the problem and fixes it

You accept the work of the master and pay

Do you intend to save money for a new board? Don't rush to do this! The Expert company is a fast and reliable repair of motherboards at the best prices.